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Oxide Powder

Silicon Dioxide SiO2 powder CAS 7631-86-9

About Silicon Dioxide SiO2 powder:
Silica, also known as silicon dioxide, is a silicon oxide with the chemical formula SiO2. The most common form in nature is quartz and various organisms. In many parts of the world, silica is the main component of sand. Silica is one of the most complex and abundant material families, in the form of mixtures of various minerals and synthetic products. Notable examples include fused silica, fumed silica, silica gel and aerogel. It is used in structural materials, microelectronics (as electrical insulators), and components in the food and pharmaceutical industries.
 
Inhalation of finely divided crystalline silica is toxic and can cause severe inflammation of lung tissue, silicosis, bronchitis, lung cancer and systemic autoimmune diseases such as lupus and rheumatoid arthritis. High-dose inhalation of amorphous silica can cause non-permanent short-term inflammation, and all effects can be cured.
 
 Long-range arrangement of silicon and oxygen atoms forms crystalline silica, short-range arrangement or long-range disordered arrangement forms amorphous silica. In a silicon dioxide crystal, the silicon atoms are at the center of a regular tetrahedron, and the four oxygen atoms are at the four corners of the tetrahedron. Many tetrahedrons are held together by oxygen atoms at the four corners. Each oxygen atom is shared by two tetrahedrons, that is, each oxygen atom is bonded to two silicon atoms.
 
The simplest molecular formula for silica is SiO2, but SiO2 does not represent a simple molecule (just the ratio of the number of silicon atoms to the number of oxygen atoms in the crystal of silica). Pure natural silica crystal is a hard, fragile, insoluble, colorless and transparent solid, often used in the manufacture of optical instruments. Feel free to send an inquiry to get the latest price if you would like to buy Silicon Dioxide SiO2 powder in bulk.

Performance of Silicon Dioxide SiO2 powder :

1 There are a lot of unsaturated surface residual button and different bonding state of hydroxyl groups, so it have high reactivity, easy to scatter;

2 Nano silicon oxides using sol-gel, synthesis of small, uniform particle size, controllable in the system, the use of different, can company of surface treatment packages, nano silicon powder can steadily in solvent system, form transparent or translucent sol colloid;

3 To ultraviolet light and presents high reflection characteristics of uv wavelengths (200 ~ 70% of the reflectivity 280nm) ~ 80%, For in the uv wave (280 ~ 80% of the reflectivity 400nm) ~85%, In visible (400-800nm) reflectivity 85%, The band of 800-1350 near infrared reflectance also higher than 70%.

Technical Parameter of Silicon Dioxide SiO2 powder :

 

Product

Nano silicon dioxide SiO2 powder

Analysis Project

Al,Fe,Ca,Mg,Cu,Mn,Na,Co,Ni,F.Si,Pb,K,N,C,S,F.O

 

Analysis Result

Chemical Composition

Wt%(Analysis)

Al

0.001

Fe

0.001

Ca

0.001

Mg

0.001

Cu

N.D

Mn

0.001

Na

0.001

Co

0.001

Ni

0.001

F.Si

0.001

Pb

N.D

K

0.001

N

0.005

C

0.002

S

0.004

F.O

0.050


How is Silicon Dioxide SiO2 powder produced?
Preparation method of amorphous silicon dioxide
The preparation of amorphous silica includes five steps, namely the preparation of silica gel, granulation process, sintering process, cleaning process and drying process.
1. Preparation of silica gel
Crushing silicon tetrachloride can produce silica gel, or pulverizing organic silicon compounds (such as tetra methoxy siloxane) to produce silica gel, or using fumed silica can produce high-quality silica gel.
2. Granulation process
By drying the silicone gel into a dry powder, pulverizing the dry powder, and then performing classification, a silica powder with a desired average yield can be obtained.
3. Sintering process
The silica powder obtained in the granulation process is sintered at a temperature of 800°C to 1450°C. The spheroidization process of thermal plasma is used to introduce argon gas at a predetermined flow rate and convert the output at a predetermined frequency to generate plasma. In the plasma torch, the sintered and obtained silica powder is dispersed at a predetermined feed rate, and heated and melted at a temperature of 2000 ℃ to the boiling point of silica.
4. Cleaning process
After the spheroidization step, the fine powder adhering to the surface of the spheroidized silica powder is removed.
5. Drying process
After the above cleaning process, the silica powder is dried.
 
Applications of Silicon Dioxide SiO2 powder:
Silica is a raw material for manufacturing glass, quartz glass, water glass, optical fiber, important parts of the electronics industry, optical instruments, handicrafts and refractory materials, and important material for scientific research.
 
1. Silica is the main ingredient in most glass production. When other minerals melt with silica, the freezing point reduction principle reduces the melting point of the mixture and increases the fluidity. The glass transition temperature of pure SiO 2 is about 1475K. When fused silica SiO2 cools quickly, it will not crystallize but will solidify into the glass. Therefore, most ceramic glazes are mainly composed of silica.
2. Silica can also be used as an additive, an excellent flow promoter, mainly used as a pressurizing agent, anti-sticking agent, and glidant.
3. Silica is particularly suitable for the granulation of oils and extracts, and it can also use glidants in direct compression.
4. As a disintegrant, silicon dioxide can greatly improve the fluidity of the granules, increase the bulk density, and increase the hardness of the prepared tablets. It can be used as an internal desiccant in the manufacture of granules to enhance the stability of the drug.
5. Silica can also be used as a filter aid, scavenger, defoamer, suspending agent and thickener for liquid preparations.
6. About 95% of the commercial uses of silica (sand) occur in the construction industry, such as the production of concrete (Portland cement concrete).
7. In cosmetics, silica plays a certain role due to its light diffusion properties and natural absorption.
8. The process of passivating the silicon surface by thermal oxidation (silicon dioxide) is critical to the semiconductor industry. It is usually used to manufacture metal oxide semiconductor field-effect transistors (MOSFET) and silicon integrated circuit chips (using planar technology).
9. Silica can be used for the extraction of DNA and RNA because it can bind to nucleic acids in the presence of chaotropic agents.
10. Since silicon dioxide is a natural oxide of silicon, compared with other semiconductors such as gallium arsenide or indium phosphide, silicon dioxide is more widely used.
11. Silicon dioxide can be grown on the surface of silicon semiconductors. The silicon oxide layer can protect the silicon surface during the diffusion process and can be used as a diffusion mask.


Storage Condition of Silicon Dioxide SiO2 powder :
Nano silicon dioxide SiO2 powder should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition should avoid the heavy pressure, according to ordinary goods transportation.

Packing & Shipping of Silicon Dioxide SiO2 powder :
It is packed in double plastic bags inside, which can be filled with argon in vacuum; it can be vacuumed and filled with argon for protection..
Silicon Dioxide SiO2 powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Silicon Dioxide SiO2 powder shipping: could be shipped out by sea , by air, by express as soon as possible once payment receipt.

Silicon Dioxide SiO2 Powder Properties

Other NamesFused quartz, silane, dioxo, Silicon (IV) Oxide, Cristobalite,
Silica, Crystalline silica, Dioxosilane, Sand, Silica glass,
SiO2, O2Si
CAS No.7631-86-9
Compound FormulaSiO2
Molecular Weight60.09
AppearanceWhite Powder
Melting Point1,600° C (2,912° F)
Solubility in waterN/A
Density2533 kg/m3
Purity99.5-99.9%
Particle Size10-30nm
Boling point2,230° C (4,046° F)
Specific HeatN/A
Thermal ConductivityN/A
Thermal ExpansionN/A
Young's ModulusN/A
Exact Mass59.9668 g/mol
Monoisotopic Mass59.967 Da
  
  

Silicon Dioxide SiO2 Powder Health & Safety Information

Safety WarningDanger
Hazard StatementsN/A
Flashing pointNot applicable
Hazard CodesN/A
Risk CodesN/A
Safety StatementsN/A
RTECS NumberN/A
Transport InformationNONH
WGK GermanyNONH
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Oxide Powder

Copper Oxide CuO powder CAS 1317-38-0

 About Cuprous Oxide CuO powder: 
Copper oxide is an inorganic substance with the chemical formula CuO. It is a black oxide of copper, slightly amphiphilic, slightly hygroscopic.
Copper oxide Virtually insoluble in water or alcohols; copper oxide dissolves slowly in ammonia solution but quickly in ammonium carbonate solution; it is dissolved by alkali metal cyanides and by strong acid solutions; hot formic acid and boiling acetic acid solutions readily dissolve the oxide.
Copper oxide is mainly used to make rayon, ceramics, glaze and enamel, batteries, petroleum desulfurizes, pesticides, and also for hydrogen production, catalysts, and green glass.
Cuprous oxide CuO is produced on a large scale by pyrometallurgy, which is a stage of extracting copper from ore. The ore is treated with an aqueous mixture of ammonium carbonate, ammonia and oxygen to obtain copper (I) and copper (II) amino complexes, which are extracted from the solid. These complexes are decomposed with steam to produce CuO.
Cupric oxide is used as a precursor in many copper-containing products such as wood preservatives and ceramics. The mean daily dietary intake of copper in adults ranges between 0.9 and 2.2 mg. Common routes of cupric oxide exposure include ingestion, dermal exposure and inhalation. Copper(II) oxide nanoparticles ( NPCuO) have industrial applications as antimicrobial agents in textiles and paints and catalysts in organic synthesis. They may also be produced from electronic wastes. Cupric oxide poses potential health and environmental concerns due to toxic and muta particles generating reactive oxygen species. Feel free to send an inquiry to get the latest price if you would like to buy Cuprous Oxide CuO powder in bulk.


Performance of Copper Oxide CuO Powder:
Copper oxide is insoluble in water and ethanol, soluble in acid, ammonium chloride and potassium cyanide solutions. It slowly dissolves in ammonia solution and can react with strong bases. Copper oxide is mainly used for making rayon, ceramics, glaze and enamel, batteries, petroleum desulfurizes, insecticides, hydrogen production, catalysts, green glass, etc.

Technical Parameter of Copper Oxide CuO Powder:

Item

-200mesh CuO powder of Nuclear cdh857

Chemical Property(%)

Physical Property

 

CuO

 

So42

 

Fe

 

Cl

 

Ni

 

Pb

Loose   Density (g/cm3)

Partical Size

(mesh)

 

shape

 

99.27

 

0.08

 

0.022

 

0.013

 

0.0024

 

0.04

 

1.54

 

-200

 

Powder


 How is Cuprous Oxide CuO powder produced? 
There are several methods of industrial production of copper oxide
1. Copper powder oxidation method
Using copper ash and copper slag as raw materials, it is roasted and heated with coal gas for preliminary oxidation to remove moisture and organic impurities in the raw materials. The generated primary oxide is naturally cooled, and after pulverization, it undergoes secondary oxidation to obtain crude copper oxide. The crude copper oxide is added to a reactor pre-installed with 1:1 sulfuric acid, and the liquid is reacted with heating and stirring until the relative density of the liquid is doubled, and the pH value is 2 to 3 as the end of the reaction, and a copper sulfate solution is generated. After clarification, under heating and stirring conditions, iron shavings are added to replace copper and then washed with hot water until there is no sulfate and iron. After centrifugal separation, drying, oxidation roasting at 450°C for 8 hours, cooling, crushing to 100 meshes, and then oxidation in an oxidation furnace to obtain copper oxide powder.
2. Nitration of copper wire or copper powder
Dissolve the copper wire or copper powder in 6mol/L nitric acid to keep the copper in excess, heat the solution to a pH value of 3-4 to remove the iron hydroxide precipitate, then mix it with 10% (mass) sodium carbonate solution and heat to boiling. Alkaline salt is precipitated, discard the supernatant, wash thoroughly with water, filter and dry. The dried basic copper carbonate is heated and decomposed into black copper oxide powder under a small fire with sufficient stirring: CuCO3·Cu(OH)2=2CuO+CO2↑+H2O
When no more carbon dioxide is produced, the decomposition is complete.
3. Copper nitrate thermal decomposition method
The electrolytic copper is dissolved in dilute nitric acid and evaporated to dryness on a water bath, and then heated in a desiccator from 90°C to 120°C very slowly. When the soft basic salt is formed, it is boiled in water, filtered and dried; then it is slowly heated to 400℃ to remove most of the nitric acid; then crushed and heated to 850℃ for 1h to decompose into oxidation copper. To make the reaction more complete, the product can be pulverized again, heated at about 700°C for 1 hour, and then placed in a desiccator to cool.
4. Conductive water dissolution method
Dissolve high-purity copper nitrate with conductive water, filter, add excess high-purity NH3·H2O to the clear liquid, filter out impurities and precipitate, and use high-purity nitric acid to neutralize the filtrate to precipitate copper hydroxide. Filter, wash once with conductive water, add nitric acid to dissolve the precipitate, add high-purity ammonium carbonate to precipitate copper carbonate, then wash, spin dry, dry in an oven at 200°C, burn at 450-550°C for 3 to 4 hours, and get Spectral pure copper oxide:
5. Copper carbonate thermal decomposition method
Put copper powder or copper wire in a fume hood with as little 6mol/L nitric acid as possible to completely dissolve it. If the solution is opaque, it needs to be filtered. Besides, the sodium carbonate solution is mixed with the copper nitrate solution and boiled to generate black basic salt precipitation. When the solid settles, discard the supernatant liquid, fully wash, filter, and dry by decantation. Put it on an evaporating dish and heat it with a small fire with sufficient stirring to decompose it into copper oxide.


Applications of Cuprous Oxide CuO powder:
As a significant product of copper mining, copper(II) oxide is the starting point for the production of other copper salts. For example, many wood preservatives are produced from copper oxide.
Cupric oxide is used as a pigment in ceramics to produce blue, red, and green, and sometimes gray, pink, or black glazes.
It is also incorrectly used as a dietary supplement in animal feed. Due to low bioactivity, negligible copper is absorbed.
It is also used when welding with copper alloys.
A copper oxide electrode formed part of the early battery type known as the Edison–Lalande cell. The copper oxide was also used in a lithium battery type.
Besides, copper(II) oxide can be used as catalysis, superconductivity, ceramics; and catalyst carriers, electrode activity materials;
glass, porcelain colorants, optical glass polishing agent, oil of desulfurized; the propellant rocket fuel speed catalyst.

Storage Condition of Copper Oxide CuO Powder:
Copper Oxide CuO Powder should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition should avoid the heavy pressure, according to ordina.

Packing & Shipping of Copper Oxide CuO Powder:
It is packed in double plastic bags inside, which can be filled with argon in vacuum; it can be vacuumed and filled with argon for protection..
Copper Oxide CuO Powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Copper Oxide CuO Powder shipping: could be shipped out by sea , by air, by express as soon as possible once payment receipt.

Copper Oxide CuO powder Properties

Other NamesCopper (II) oxide, Copper monooxide, Cupric oxide, Copporal, Oxocopper,
Copper Brown, Black copper oxide, Paramelaconite Cuprous oxide, Copacaps,
Boliden Salt K-33, Copper oxygen(2-), Ketocopper, cu2-ox-02-p.05um
CAS No.1317-38-0
Compound FormulaCuO
Molecular Weight79.55
Appearanceblack to brown powder
Melting Point1,201° C (2,194° F)
Solubility in waterN/A
Density6.31 g/cm3
Purity99.50%
Particle Size40nm, 200nm
Boling point2,000° C (3,632° F)
Specific HeatN/A
Thermal ConductivityN/A
Thermal ExpansionN/A
Young's ModulusN/A
Exact Mass78.9245 g/mol
Monoisotopic Mass78.924516 Da
  
  

Copper Oxide CuO powder Health & Safety Information

Safety WarningWarning
Hazard StatementsH400-H412
Flashing pointN/A
Hazard CodesXn,N
Risk Codes22-50/53
Safety Statements60-61
RTECS NumberGL7900000
Transport InformationUN 3077 9 / PGIII
WGK Germany3
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Oxide Powder

Aluminum Oxide Al2O3 CAS 1344-28-1

About Aluminium oxide:
Aluminum oxide is an electrical insulator, it has a fairly high thermal conductivity to ceramic materials. The most common form of crystalline alumina is called corundum. Alumina can provide activated, super-activated, acidic, alkaline and neutral grades, and has flash grades, TLC, biomass purification, decolorization, dioxin analysis, PCB removal, pyrogen removal and biotechnology wide-pore forms. Oxide does not conduct electricity. However, certain oxides of perovskite structures have conductivity in the cathodes of solid oxide fuel cells and oxygen generation systems. They are compounds containing at least one oxygen anion and one metal cation. They are generally insoluble in aqueous solutions (water) and are very stable, so they can be used in ceramic structures, such as clay bowls for the production of advanced electronic devices, and lightweight structural components used in aerospace and electrochemical applications, such as fuel cells. Exhibits ionic conductivity. Metal oxides are basic acid anhydrides, so they can react with acids and strong reducing agents in redox reactions. Reactive chromatography grade alumina is used in lighting, photographic chromatography and various chromatographic separation techniques. Alumina is usually available in most quantities immediately. High purity, sub-micron and nanopowder forms can be considered. Alumina can also be made into particles, pellets, powders, sputtering targets, tablets and nano-powders. Provide typical and customized packaging, as well as other research, technical and safety (MSDS) data. Please contact us for the above delivery time and price information
. Feel free to send an inquiry to get the latest price if you would like to buy Aluminum oxide in bulk.

 
How is Aluminium oxide produced?
Aluminum oxide is produced by the bauxite process. The Bayer process is carried out in four steps. First, the bauxite is crushed, washed and dried, and then dissolved with caustic soda at high temperatures. Next, the mixture is filtered to remove impurities called "red mud" and discarded appropriately. The remaining alumina solution is transferred to a high tank called a settler. In the sedimentation tank, the hot solution begins to cool, and aluminum hydroxide seeds (very small particles) are added. The aluminum hydroxide seeds stimulate the precipitation of solid aluminum hydroxide crystals. Aluminum hydroxide precipitates at the bottom of the tank and is removed. Finally, all remaining caustic soda in the aluminum hydroxide is washed and heated to remove excess water. After this process, alumina (alumina) appears as a fine white powder. It looks a lot like sugar used in baking, but it is hard enough to scratch the glass plate.
 
Application of Aluminium oxide:
Most of the alumina produced is used to form aluminum metal. Oxygen usually reacts with metallic aluminum to catalyze corrosion. However, when combined with oxygen to form alumina, it forms a protective coating and prevents further oxidation. This increases the strength and makes the material less prone to deterioration. Alumina is mainly used as analytical reagents, dehydration of organic solvents, adsorbents, organic reaction catalysts, abrasives, polishing agents, raw materials for smelting aluminum, and refractory materials.
Industries that use alumina include:
Medical industry
Due to the hardness, biological inertness and chemical properties of alumina, it is used for hip replacement surgery prostheses, bionic implants, artificial eye substitutes, tissue reinforcement materials, crowns, abutments, bridges and other dental implants. The preferred material of the bearing. It is also used in laboratory equipment and tools such as crucibles, furnaces and other laboratory appliances.
Military and protective equipment
The strength and lightweight properties of alumina help to strengthen body armor, such as breastplates and armor for cars and airplanes, which is its largest market. Alumina is also used to synthesize sapphire bulletproof windows and bulletproof systems.
Electrical and electronic industry
Its high melting point and high boiling point, as well as its excellent heat resistance, make alumina an ideal material for high-temperature furnace insulators and electrical insulators. Alumina film is also a vital component in the microchip industry. Some of its other uses include spark plug insulators, micro-electric substrates and insulating heat sinks.

Performance of Aluminum Oxide Al2O3 Powder:
Aluminum oxide (aluminum oxide), chemical formula Al2O3. It is a high hardness compound with a melting point of 2054°C and a boiling point of 2980°C. It is an ion crystal that can be ionized at high temperatures and is commonly used in the manufacture of refractory materials. It is a white solid that is insoluble in water, odorless, tasteless, and extremely hard.

Technical Parameter of Aluminum Oxide Al2O3 Powder:

testing index

unit

Tr-D100

Tr-D200

Chemical parameters

Al2O3

%

≥99.99

≥99.99

Fe

ppm

≤8

≤8

Cr

ppm

≤1

≤2

Mg

ppm

≤1

≤2

Cu

ppm

≤1

≤2

Ti

ppm

≤1

≤2

Na

ppm

≤30

≤30

Si

ppm

≤20

≤20

Ca

ppm

≤1

≤1

size parameter

D50

μm

0.5-30

1-30

Bulk density

g/m3

0.3-0.6

0.3-0.6

Specific surface area

m2/g

2-10

10-20







 









Storage Condition of Aluminum Oxide Al2O3 Powder:
Aluminum Oxide Al2O3 Powder should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition, should avoid the heavy pressure, according to ordinary goods transportation.

Packing & Shipping of  Aluminum Oxide Al2O3 Powder:
It is packed in double plastic bags inside, which can be filled with argon in a vacuum; it can be vacuumed and filled with argon for protection.
Aluminum Oxide Al2O3 Powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
 Aluminum Oxide Al2O3 Powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

Aluminum Oxide Properties

Other Namesalumina, aluminum (III) oxide, aluminum trioxide, Al2O3 powder
CAS No.1344-28-1
Compound FormulaAl2O3
Molecular Weight101.96
AppearanceWhite Powder
Melting Point2072 °C
Boiling Point2977 °C
Density3.95 g/cm3
Solubility in H2ON/A
Exact Mass101.948 g/mol
  
  

Aluminum Oxide Health & Safety Information

Signal WordN/A
Hazard StatementsN/A
Hazard CodesN/A
Risk CodesN/A
Safety StatementsN/A
Transport InformationNONH
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Oxide Powder

Manganese Dioxide MnO2 CAS 1313-13-9

About Manganese Dioxide MnO2:
Manganese dioxide is an inorganic compound with the chemical formula MnO2, which exists in the form of pyrolusite in nature. Physical properties: black amorphous powder, or black orthorhombic crystals. Solubility: hardly soluble in water, weak acid, weak base, nitric acid, cold sulfuric acid, pulverize concentrated hydrochloric acid under heating to produce chlorine.


If you want to know manganese dioxide price/MnO2 price/manganese oxide price, please send inquiry to sales1@rboschco.com

 
MnO2 is an alpha polymorph that can incorporate various atoms (and water molecules) in the "tunnels" or "channels" between the manganese oxide octahedrons. People are very interested in α-MnO2 as a possible cathode for lithium-ion batteries.
 
Manganese dioxide is an amphoteric oxide. It is a very stable black powdery solid at room temperature and can be used as a depolarizer for dry batteries. It is often used in the laboratory to produce chlorine by its oxidizing property and the action of concentrated HCl. Manganese dioxide is a strong oxidant in acidic media. Manganese dioxide is an [MnO₂] octahedron. The oxygen atom is on the top of the octahedron, and the manganese atom is in the octahedron. [MnO₂] octahedrons are connected together to form a single or double chain. These chains and other chains co-top to form The tunnel structure of voids, octahedrons or hexagonal close-packed, or square close-packed.

Manganese 2 oxide is an amphoteric oxide, and there is a corresponding salt in the form of a perovskite structure such as BaMnO3 or SrMnO3 (obtained by a compound reaction in a molten alkali system), and manganese tetrachloride is also present.
 
When electrolytic manganese dioxide encounters a reducing agent, it is oxidizing. For example, manganese dioxide is heated in a stream of hydrogen to 1400K to obtain manganese oxide; manganese dioxide is heated in a stream of ammonia to obtain brown-black manganese trioxide; the manganese dioxide is reacted with concentrated hydrochloric acid to obtain l chlorine Manganese, chlorine and water.

When manganese dioxide encounters strong oxidants, it also exhibits reducibility. If manganese dioxide, potassium carbonate and potassium nitrate or potassium chlorate are mixed and melted, a dark green melt can be obtained, and the melt can be dissolved in water and cooled to obtain potassium manganate, a compound of hexavalent manganese.

Manganese dioxide is a strong oxidant in acidic media. It is used as a catalyst in the decomposition of potassium chlorate [KClO3] and the decomposition of hydrogen peroxide (hydrogen peroxide, H2O2).

Due to the strong oxidant, manganese dioxide does not burn by itself, but it supports combustion and should not be placed with flammable materials. Feel free to send an inquiry to get the latest price if you would like to buy Manganese Dioxide MnO2 in bulk.

Product Performance of Manganese Dioxide MnO2 CAS 1313-13-9:
Physical properties: black amorphous powder, or black rhombic crystals. Solubility: Difficult to dissolve in water, weak acid, weak base, nitric acid, cold sulfuric acid, and dissolve in concentrated hydrochloric acid under heating to produce chlorine gas.

Chemical properties: Manganese dioxide is an amphoteric oxide. There is a corresponding salt in the form of a perovskite structure such as BaMnO3 or SrMnO3 (obtained by a compound reaction in a molten alkali system). There is also manganese tetrachloride.

When meeting the reducing agent, it shows an oxidizing property. If manganese dioxide is placed in a stream of hydrogen and heated to 1400K to obtain manganese oxide; manganese dioxide is heated in a stream of ammonia to obtain brown-black manganese trioxide; reacting manganese dioxide with concentrated hydrochloric acid produces l chloride Manganese chloride, chlorine and water.

When it meets strong oxidants, it also shows reducing property. It is a strong oxidant in an acid medium.

Manganese Dioxide Composition:

MnO2H2OFeCuPbNiCoHgAcid insolublesulfate
92.33%2.17%65ppm0.5ppm0.5ppm2.0ppm2.0ppm47ppm0.01%1.2%


How is Manganese Dioxide MnO2 produced?
Naturally occurring manganese dioxide contains impurities and a large amount of manganese trioxide. Only a limited number of deposits contain gamma modifiers of sufficient purity to meet the needs of the battery industry.

The production of batteries and ferrites (the two main uses of manganese dioxide) requires high-purity manganese dioxide. The battery needs "electrolytic manganese dioxide", and the ferrite needs "chemical manganese dioxide".
1. Chemical Manganese Dioxide
One method is to start with natural manganese dioxide and then use dinitrogen tetroxide and water to convert it into a solution of manganese (II) nitrate. The evaporation of water leaves crystallized nitrates. At a temperature of 400°C, the salt decomposes, releasing N2O4 and leaving a pure manganese dioxide residue. These two steps can be summarized as:
MnO2 +N2O4⇌MnNO32

2. Carbothermal reduction of manganese dioxide
In another method, manganese dioxide is carbothermal reduced to manganese (II) oxide dissolved in sulfuric acid. The filtered solution was treated with ammonium carbonate to precipitate MnCO.
The carbonate is calcined in air to obtain a mixture of manganese (II) and manganese (IV) oxides. To complete the process, the suspension of the material in sulfuric acid is treated with sodium chlorate. The chloric acid formed in situ can convert any Mn(III) and Mn(II) oxides into carbon dioxide, releasing chlorine by-products.

3. Manganese epoxide and manganese monoxide
The third method involves manganese epoxide and manganese monoxide. The two reagents are mixed in a ratio of 1:3 to form manganese dioxide:
Mn2O7 + 3 MnO→5 MnO2
Finally, the effect of potassium permanganate on manganese sulfate crystals produces the desired oxide.
2 KMnO4 + 3 MnSO4 + 2 H2O→5 MnO2 + K2SO4 + 2 H2SO4

4. Electrolytic Manganese Dioxide
Electrolytic manganese dioxide (EMD) is used in zinc-carbon batteries together with zinc chloride and ammonium chloride. EMD has also commonly used in manganese zinc dioxide rechargeable alkaline (Zn RAM) batteries. For these applications, purity is critical. The production method of EMD is similar to the production method of electrolytic ductile pitch (ETP) copper: manganese dioxide is dissolved in sulfuric acid (sometimes mixed with manganese sulfate) and electricity is applied between the two electrodes. The dissolved MnO2 enters the solution in the form of sulfate and is deposited on the anode.

Applications of Manganese Dioxide MnO2:
Manganese dioxide is a black or brown solid, naturally present in the mineral pyrolusite, which is the main ore of manganese and manganese nodules.

The main use of MnO2 is for dry batteries, such as alkaline batteries and zinc-carbon batteries.

MnO2 is also used as a precursor for pigments and other manganese compounds (such as KMnO4). It is used as a reagent in organic synthesis, for example for the oxidation of allyl alcohol.

MnO2 is used as a depolarizer for dry batteries, as a catalyst and oxidant in the synthesis industry, and as a colorant, decolorant and iron removal agent in the glass industry and enamel industry.

MnO2 is used to manufacture metallic manganese, special alloys, ferromanganese castings, gas masks and ferrites for electronic materials.

MnO2 can be used in the rubber industry to increase the viscosity of rubber.

MnO2 is used as a catalyst in chemical experiments

Used as a catalyst for the decomposition of hydrogen peroxide (hydrogen peroxide) to produce oxygen.

Used as a catalyst when heating potassium chlorate to decompose and produce oxygen.

It reacts with elemental aluminum powder to produce manganese by a thermite reaction.

Use pigments, yellow glass, etc.

React with hot concentrated hydrochloric acid to produce chlorine.

It reacts with molten caustic potassium (potassium hydroxide) in the air to produce potassium manganate.

In the decomposition reaction of potassium permanganate, manganese dioxide acts as a self-catalyst for potassium permanganate.

Storage Condition of Manganese Dioxide MnO2 Powder:
Precautions for storage: Store in a cool, ventilated warehouse. Keep away from fire and heat. It should be stored separately from combustibles (combustibles), reducing agents and acids, and avoid mixed storage. The storage area should be equipped with suitable materials to contain the leakage.

Packing & Shipping of Manganese Dioxide MnO2 Powder:
We have many different kinds of packing which depends on the Manganese Dioxide MnO2 Powder quantity.
Manganese Dioxide MnO2 Powder packing: vacuum packing, 1kg/bag, 25kg/barrel, or as your request.
Manganese Dioxide MnO2 Powder: could be shipped out by sea , by air, by express as soon as possible once payment receipt.

Manganese Dioxide Properties

Other Namesmanganese oxide, MnO2 powder
CAS No.1313-13-9
Compound FormulaMnO2
Molecular Weight86.94
AppearanceBlack Powder
Melting Point535 °C
Boiling PointN/A
Density5.03 g/cm3
Solubility in H2OInsoluble
Exact Mass86.9279
  
  

Manganese Dioxide Health & Safety Information

Signal WordWarning
Hazard StatementsH302 + H332
Hazard CodesXn, O
Risk CodesN/A
Safety StatementsN/A
Transport InformationNONH
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Oxide Powder

Indium Oxide In2O3 Powder CAS 1312-43-2

About Indium Oxide In2O3 Powder:
Indium oxide is an amphoteric oxide of indium, and the molecular formula is 2O3. The pure product is a white or light yellow amorphous powder, which is heated to reddish-brown. Indium oxide is a new n-type transparent semiconductor functional material having width disabled bandwidth, smaller resistivity and higher catalytic activity, and has been widely used in optical fields, gas sensors, and catalysts. In addition to the above functions, there is also an indium oxide particle size, surface effect, quantum dimensional effect, small dimensional effect, macroscopic quantum tunnel effect.
Indium oxide is presented in hydrogen or another reducing agent, heated to 400 to 500 ° C, reduced metal indium or low-cost oxide. The low-level oxide is separated at high temperatures. Further, at a high temperature, it can react with metal indium solubilized in acid, but the more difficult it is, and the moisture absorption also disappears. When hydrogen is reduced by heating through hydrogen, metal indium is produced.
Indium oxide is insoluble in water but can be dissolved in acid, while crystalline oxides are not soluble in water. The crystals are divided into two phases, cubic (diamond type) and diamond (corundum). The bandgap between the two phases is 3eV. The parameter of the cubic phase is listed in the information box. A rhombic phase is produced at high temperatures and is produced using a non-balanced growth method. Its spatial group R3C No. 167, Piersson symbol HR30, A = 0.5487 nm, b = 0.5487 nm, C = 0.57818 nm, z = 6, the calculation density is 7.31 g / cm3.
Indium mixed indium film (IN2-XCRXO3) is a magnetic semiconductor, a single-phase crystal structure, and a high carrier concentration semiconductor behavior having high-temperature ferromagnetic properties. As the material of the rotating syringe, it can be in the spinning electronics.
Indium oxide polycrystalline films doped with Zn have high conductivity (conductivity to 105 S / m), even with higher superconductivity at temperatures in helium. The superconducting transition temperature Tc is related to the doping and the film structure, less than 3.3k. Feel free to send an inquiry to get the latest price if you would like to buy Indium Oxide In2O3 Powder in bulk.

Performance of Indium Oxide In2O3 Powder:

In the presence of hydrogen or other reducing agents, heating to 400 ~ 500 ℃ can be reduced to metal indium or low-cost indium oxide.
Decomposes to lower oxides at high temperatures. In addition, it can react with metal indium at high temperature. Although In2O3 generated by low-temperature burning is easily soluble in acid, the more complete the high-temperature treatment is, the more difficult it is to dissolve, and the hygroscopicity also disappears. When indium trioxide is reduced with hydrogen under red heat, metal indium is generated.

Technical Parameter of Indium Oxide In2O3 Powder:

ITEMSPECIFICATIONSTEST RESULTS
AppearanceLight Yellowish PowderLight Yellowish Powder
In2O3(%,Min)99.9999.995
Impurities(%,Max)
Cu 0.8
Pb 2.0
Zn 0.5
Cd 1.0
Fe 3.0
Tl 1.0
Sn 3.0
As 0.3
Al 0.5
Mg 0.5
Ti 1.0
Sb 0.1
Co 0.1
K 0.3
 Other Index
Particle Size(D50) 3-5μm


How is Indium Oxide In2O3 Powder produced?
1. The high-purity metal indium is burned in the air or indium carbonate is calcined to produce In2O, Ino and In2O3, and the high-purity In2O3 can be obtained by finely controlling the reduction conditions. The indium trioxide ceramic powder with an average particle size of 20nm can also be prepared by the spray combustion process.
2. When indium hydroxide is burned to prepare indium trioxide, if the temperature is too high, In2O3 has the possibility of thermal decomposition; if the temperature is too low, it is difficult to complete dehydration, and the oxide generated has hygroscopic property. Therefore, heating temperature and time are important factors. In addition, because In2O3 is easily reduced, it must always be kept in an oxidizing atmosphere.
3. Indium hydroxide is burned in the air at 850℃ to a constant weight to generate In2O3, and then heated in the air at 1000℃ for 30min. Other indium nitrates, indium carbonate, and indium sulfate can also be burned in the air to make indium trioxide.
 
Applications of Indium Oxide In2O3 Powder:
In recent years, indium oxide has been used in high-tech fields and military fields, such as photovoltaic industries, particularly processed into indium tin oxide (ITO) targets, manufacturing transparent electrodes and transparent heat reflector materials.
Used to produce a planar liquid crystal display and inverter.
Indium oxide is used as materials such as spectral purity reagents and electronic components.
Indium oxide is used in a protective coating of a metal mirror surface, and a photovoltaic display semiconductor film is also used to produce indium salts and glass.
Indium oxide is a raw material commonly used in the resistance touch screen, mainly used in fluorescent screens, glass, ceramics, chemical reagents, and the like.
For non-ferrous metal glass, ceramics, alkaline manganese batteries, indium oxide series Liu, chemical reagents, and other traditional fields of Colorado.
Oxides are used in certain types of batteries, thin-film infrared reflectors (high mirrors), some optical coatings and some antistatic coatings for visible light transparency.
Indium oxide and tin oxide form indium tin oxide (also referred to as blend indium oxide or ITO), and a material transparent conductive coating.
In the semiconductor, indium oxide can be used as an N-type semiconductor of the resistance element in the integrated circuit.
In histological learning, indium oxide is used as part of certain dyeing formulations.


Storage Condition of Indium Oxide In2O3 Powder:
Indium Oxide In2O3 Powder should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition, should avoid the heavy pressure, according to ordinary goods transportation.

Packing & Shipping of Indium Oxide In2O3 Powder:
It is packed in double plastic bags inside, which can be filled with argon in a vacuum; it can be vacuumed and filled with argon for protection.
Indium Oxide In2O3 Powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Indium Oxide In2O3 Powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

Indium Oxide In2O3 Powder Properties

Other NamesIndium Oxide, Indium(3+) oxide, India, Indium trioxide, Indium sesquioxide,
Oxo-oxoindianyloxyindigane, Indium(3+); oxygen(2-), Diindium trioxide.
CAS No.1312-43-2
Compound FormulaIn2O3
Molecular Weight277.64
AppearanceYellow Powder
Melting Point1,910° C (3,470° F)
Solubility in waterN/A
Density7.18 g/cm3
Purity99.90%
Particle Sizegranule, -
Boling pointN/A
Specific HeatN/A
Thermal ConductivityN/A
Thermal ExpansionN/A
Young's ModulusN/A
Exact Mass277.793 g/mol
Monoisotopic Mass277.793 Da
  
  

Indium Oxide In2O3 Powder Health & Safety Information

Safety WarningN/A
Hazard StatementsN/A
Flashing pointN/A
Hazard CodesN/A
Risk CodesN/A
Safety StatementsN/A
RTECS NumberNL1770000
Transport Informationn
WGK Germany3
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Oxide Powder

Cerium Oxide CeO2 powder CAS 1306-38-3

About Cerium Oxide CeO2 powder:
Cerium(IV) oxide, also known as ceric oxide, ceric dioxide, ceria, cerium oxide or cerium dioxide, is an oxide of the rare-earth metal cerium. It is a pale yellow-white powder with the chemical formula CeO2. It is an important commercial product and an intermediate in the purification of the element from the ores. The distinctive property of this material is its reversible conversion to a non-stoichiometric oxide.
Cerium oxide has a density of 7.13g/cm3 and a melting point of 2397℃. It is insoluble in water and alkali, but slightly soluble in acid. Under the temperature of 2000 ℃ and 15 mph pressure, can be achieved by hydrogen reduction cerium oxide, cerium oxide, temperature between 2000 ℃ and free pressure-free in 5 mph, cerium oxide is light yellow, reddish and pink, its performance is to be polished material, catalyst, catalyst carrier, (assistant), UV absorber, fuel cell electrolyte, automobile tail gas absorber, electronic ceramics, etc. Feel free to send an inquiry to get the latest price if you would like to buy Cerium Oxide CeO2 powder in bulk.

Performance of Cerium Oxide CeO2 powder:

At a temperature of 2000℃ and a pressure of 15MPa, cerium oxide can be reduced by hydrogen to obtain cerium oxide. When the temperature is free at 2000℃ and the pressure is free at 5MPa, the cerium oxide is yellowish and reddish, and pink. Its performance is to make polishing materials, catalysts, catalyst carriers (auxiliaries), ultraviolet absorbers, fuel cell electrolytes, automobile exhaust absorbers, electronic ceramics, etc.
 

Technical Parameter of Cerium Oxide CeO2 powder:

                 CeO2         3N                CeO2          4N                 CeO2          5N
TREO99.0099.0099.50
CeO2/TREO99.9599.9999.999
Fe2O30.0100.0050.001
SiO20.0100.0050.001
CaO0.0300.0050.002
SO42-0.0500.0200.020
Cl-0.0500.0200.020
Na2O0.0050.0020.001
PbO0.0050.0020.001


How is Cerium Oxide CeO2 powder produced?
The production method of cerium oxide is mainly oxalic acid precipitation method, that is, using cerium chloride or cerium nitrate solution as raw material, using oxalic acid to adjust the pH value to 2, adding ammonia to precipitate cerium oxalate, after heating and curing, separation, washing, drying at 110℃, and then burning at 900 ~ 1000℃ to form cerium oxide
CeCl2 + H2C2O4 + 2 NH4OH and CeC2O4 + 2 H2O+ 2 NH4Cl
 
Applications of Cerium Oxide CeO2 powder:
Oxidant.
Organic reactive catalyst.
Steel analysis is a rare earth metal standard.
Oxidative Titration Analysis.
Decorative glass.
Glass enamel shielding agent.
Heating alloy.
It is used as a glass industrial additive, and the plate glass abrasive material can also be used to act as an ultraviolet ray in cosmetics.
It has been expanded to the glasses glass, optical lens, the abrasion of the image tube, from the absorption of ultraviolet rays and electronics of the glass.
The primary ingredients of the cerium oxide polishing powder are cerium oxide (CeO2), followed by cerium oxide (La2O3), oxide (PR2O3), magfuric lanthanide (LaOf), but also contain trace silicon oxide, alumina and calcium oxide . The polishing effect is affected by polishing powder is the particle size, purity and hardness of CeO2.
Since nano-CEO2 has a wealth of electronic transition capability, excellent optical sensitivity is absorbed to ultraviolet light. The small dimensional effect of nanoparticles, high-proportion surface effects, macroscopic quantum effects, strong scattering and reflection of ultraviolet light.


Storage Condition of Cerium Oxide CeO2 powder:
Cerium Oxide CeO2 powder should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition, should avoid the heavy pressure, according to ordinary goods transportation.

Packing & Shipping of Cerium Oxide CeO2 powder:
It is packed in double plastic bags inside, which can be filled with argon in a vacuum; it can be vacuumed and filled with argon for protection.
Cerium Oxide CeO2 powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Cerium Oxide CeO2 powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

Cerium Oxide Powder Properties

Other NamesCerium(IV) oxide, Ceric oxide, Dioxocerium, Cerium dioxide,
Needlal, Ceria, Opaline, Cerium(IV) dioxide, Ceric dioxide
CAS No.1306-38-3
Compound FormulaCeO2
Molecular Weight172.12
AppearanceWhite to Yellow Powder
Melting Point2340
Boiling Point3500
Density7.6 g/cm3
Solubility in H2ON/A
Electrical Resistivity4 10x Ω-m
Specific Heat390 J/kg-K
Thermal Expansion11 µm/m-K
Young's Modulus180 GPa
Exact Mass171.895 g/mol
Monoisotopic Mass171.895264 Da
  
  

Cerium Oxide Powder Health & Safety Information

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Hazard StatementsN/A
Hazard CodesN/A
Risk CodesN/A
Safety StatementsN/A
Transport InformationNONH for all modes of transport
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Oxide Powder

Tungsten Oxide WO3 Powder CAS 1314-35-8

About Tungsten Oxide WO3 Powder:
Tungsten trioxide is an inorganic substance with the chemical formula WO3, yellow powder. It is obtained by adding acid after the fusion of ore and soda ash.
Tungsten trioxide is a light yellow orthorhombic crystalline powder. The color changes from lighter to darker when heated. The specific gravity is 7.16 g/cm3, the melting point is 1473°C, and the boiling point is 1750°C. It sublimates significantly at 850°C and turns green when melted. It is stable in the air, insoluble in water and inorganic acids except for hydrofluoric acid, and can be slowly dissolved in ammonia water and concentrated sodium hydroxide solution.
 
Tungsten(VI) oxide, also known as tungsten trioxide or tungstic anhydride, WO3, is a chemical compound containing oxygen and the transition metal tungsten. It is obtained as an intermediate in the recovery of tungsten from its minerals.  Tungsten ores are treated with alkalis to produce WO3. Further reaction with carbon or hydrogen gas reduces tungsten trioxide to pure metal.
 
Tungsten(VI) oxide occurs naturally in the form of hydrates, which include minerals: tungstite WO3·H2O, meymacite WO3·2H2O and hydrotungstite (of the same composition as meymacite, however sometimes written as H2WO4). These minerals are rare to very rare secondary tungsten minerals.
 
The crystal structure of tungsten trioxide is temperature-dependent. It is tetragonal at temperatures above 740 °C, orthorhombic from 330 to 740 °C, monoclinic from 17 to 330 °C, triclinic from -50 to 17 °C, and monoclinic again at temperatures below -50 °C. The most common structure of WO3 is monoclinic with space group P21/n.
 
Tungsten trioxide is a strong oxidizing agent: it reacts with rare-earth elements, iron, copper, aluminum, manganese, zinc, chromium, molybdenum, carbon, hydrogen and silver, being reduced to a pure tungsten metal. Reaction with gold and platinum reduces it to dioxide. Feel free to send an inquiry to get the latest price if you would like to buy Tungsten Oxide WO3 Powder in bulk.

Performance of Tungsten Oxide WO3 Powder:

Tungsten trioxide is a light yellow orthorhombic crystal powder. The color changes from light to dark when heated. The specific gravity is 7.16 g/cubic centimeter, the melting point is 1473°C, the boiling point is 1750°C, it sublimates remarkably at 850°C, and turns green when melted. Stable in air, insoluble in water and inorganic acids other than hydrofluoric acid, and slowly soluble in ammonia water and concentrated hot sodium hydroxide solution.

Technical Parameter of Tungsten Oxide WO3 Powder:

WO3 Certificate of Analysis—ppm

Fe

Ni

Ca

Cr

Cu

2.5

0.50

8.3

100

35

 

How is Tungsten Oxide WO3 Powder produced?
Tungsten trioxide can be prepared in several different ways. CaWO4, or scheelite, is allowed to react with HCl to produce tungstic acid, which decomposes to WO3 and water at high temperatures.
CaWO4 + 2 HCl → CaCl2 + H2WO4
H2WO4 → H2O + WO3
 
Another common way to synthesize WO3 is by calcination of ammonium para tungstate (APT) under oxidizing conditions:
(NH4)10[H2W12O42] • 4H2O → 12 WO3 + 10 NH3 + 10 H2O
 
Applications of Tungsten Oxide WO3 Powder:
Tungsten trioxide has many uses in daily life. It is often used in industry to manufacture X-ray phosphors, fireproof fabrics and gas sensors. Due to its rich yellow color, WO3 can also be used as a pigment for ceramics and paints.
1.Tungsten trioxide is mainly used for calcining reduction to produce tungsten powder and tungsten carbide powder and then used for the production of cemented carbide products, such as the manufacture of tools and molds.
2.Tungsten trioxide can also be used to manufacture pure tungsten products, tungsten bars, tungsten wires, tungsten electrodes;
3.In industrial production, a small amount of tungsten trioxide is also used as a colorant for yellow ceramics.
4.In the shipbuilding industry, tungsten oxide of tungsten is used as an important anticorrosive paint and coating material.
5.In recent years, tungsten trioxide has been used to produce electrochromic windows or smart windows. These windows are electrically switchable glass, and the light transmission properties can be changed by applying a voltage. This allows users to tint their windows, thereby changing the amount of heat or light passing through.
6.X-ray screen and fireproof textile and the colorant and analysis reagent of chinaware, etc.
7.Tungsten trioxide can be used as a weight and radiation shielding material.
8.WO3  also has been under extensive research because of its importance for its electro-optical, electrochromic, ferroelectric and catalytic, etc.
9.Radiation shielding material and the producing metal tungsten material.

Storage Condition of Tungsten Oxide WO3 Powder:
Tungsten Oxide WO3 Powder should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition, should avoid the heavy pressure, according to ordinary goods transportation.

Packing & Shipping of Tungsten Oxide WO3 Powder:
It is packed in double plastic bags inside, which can be filled with argon in vacuum; it can be vacuumed and filled with argon for protection..
Tungsten Oxide WO3 Powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Tungsten Oxide WO3 Powder shipping: could be shipped out by sea , by air, by express as soon as possible once payment receipt.

Tungsten Oxide WO3 Powder Properties

Other NamesTungsten trioxide, Tungstic anhydride, Tungsten(VI) oxide, Tungstic, oxide
CAS No.1314-35-8
Compound FormulaWO3
Molecular Weight231.84 g/mol
Appearanceyellow, purple, blue powder
Melting Point1,473 °C
Solubility in waterInsoluble
Density7.16 g/cm3
Purity99.00%
Particle Size70nm
Boling point1700 °C 
Specific HeatN/A
Thermal ConductivityN/A
Thermal ExpansionN/A
Young's ModulusN/A
Exact Mass231.936 g/mol
Monoisotopic Mass231.935644 Da
  
  

Tungsten Oxide WO3 Powder Health & Safety Information

Safety WarningN/A
Hazard StatementsN/A
Flashing pointNot applicable
Hazard CodesN/A
Risk CodesN/A
Safety StatementsN/A
RTECS NumberYO7760000
Transport InformationNONH for all modes of transport
WGK GermanyN/A
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Oxide Powder

Iron Oxide Fe3O4 Powder CAS 1317-61-9

About Iron Oxide Fe3O4 Powder
Iron oxide (II, III) (Fe3O4) is a highly insoluble and thermally stable iron source suitable for glass, optical and ceramic applications. Oxide does not conduct electricity. However, certain oxides of perovskite structure have conductivity in the cathodes of solid oxide fuel cells and oxygen generation systems. 

They are compounds containing at least one oxygen anion and one metal cation. They are generally insoluble in aqueous solutions (water) and are very stable, making them useful for ceramic structures, as simple as the production of clay bowls for advanced electronic devices, and for lightweight structural components in aerospace and electrochemical applications such as fuels Batteries in which they exhibit ionic conductivity. Metal oxides are basic high-purity (99.999%) iron oxide (FeO) anhydrides, so they can react with acids and strong reducing agents in redox reactions. Iron oxide can also be made into particles, nuggets, powders, sputtering targets, tablets, and Nanopowders. In most cases, iron oxide is usually available immediately. High purity, submicron and Nanopowder forms can be considered. Provide other technical, research, and safety (MSDS) information. Feel free to send an inquiry to get the latest price if you would like to buy Iron Oxide Fe3O4 Powder in bulk.
 
How is Iron Oxide Fe3O4 Powder Produced?
Iron tetroxide is produced by the Schikorr reaction. This reaction converts iron (II) hydroxide (Fe(OH)2) into iron oxide (II, III) (Fe3O4). Under anaerobic conditions, ferrous hydroxide (Fe(OH)2) oxidizes in water to form magnetite and molecular hydrogen. Schikorr 's reaction explains this process.
3Fe(OH)2Fe3O4 + H2 + 2H2O
Ferrous Hydroxide Magnetite Hydrogen Water.
 
Applications of Iron Oxide Fe3O4 Powder
Triferric tetroxide, commonly known as iron oxide black, magnetite, and black iron oxide, can be used in many different fields, for example:
Iron (II, III) oxide is used as a black pigment also known as Mars Black.
It is used in the Haber process as a catalyst.
It is used in the water-gas shift reaction.
Fe3O4 magnetic Nanoparticles are used in MRI scanning as contrasts against it.
It protects the steel from rusting.
It is an ingredient in thermite which is used for cutting steel.

Performance of Iron Oxide Fe3O4 Powder:
Ferric oxide has ferromagnetism. If the radius of the formed particles is on the nanometer level, it is called ferromagnetic particles.

Technical Parameter of Iron Oxide Fe3O4 Powder:

Test item                             01        02
Content Fe3O4≥﹪9999
Moisture content ≤﹪0.70.7
Water Soluble ≤﹪0.40.4
Residue On Sieve(325mesh)0.30.3
Oil absorption (ml/100g)2121
 PH value7.07.0
Tinting strength ﹪9999


Application of Iron Oxide Fe3O4 Powder:

1. can produce magnetic recording materials, high gradient magnetic separator, microwave absorption materials, special coatings.

2. widely used as a carrier for various pharmaceutical ingredients to form a magnetic targeting drug delivery system; used for the separation of magnetic immune cells, nuclear magnetic resonance imaging and other aspects.

3. used for precision instruments, gas seals, vacuum seals, etc.

Storage Condition of Iron Oxide Fe3O4 Powder:
Iron Oxide Fe3O4 Powder should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition, should avoid the heavy pressure, according to ordinary goods transportation.

Packing & Shipping of Iron Oxide Fe3O4 Powder:
It is packed in double plastic bags inside, which can be filled with argon in vacuum; it can be vacuumed and filled with argon for protection.
Iron Oxide Fe3O4 Powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Iron Oxide Fe3O4 Powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

Iron Oxide Properties

Other Namesmagnetic black, fenosoferric oxide, ferro ferric oxide,
ferrosoferric oxide, Fe3O4
CAS No.1317-61-9
Compound FormulaFe3O4
Molecular Weight233.53
AppearanceBlack Powder
Melting Point1597 °C
Boiling PointN/A
Density4.8-5.1 g/cm3
Solubility in H2ON/A
Exact Mass231.784471
  
  

Iron Oxide Health & Safety Information

Signal WordWarning
Hazard StatementsH315-H319-H335
Hazard CodesN/A
Risk CodesN/A
Safety StatementsN/A
Transport InformationNONH
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Oxide Powder

Zinc Oxide ZnO powder CAS 1314-23-4

About Zinc Oxide ZnO powder:
Zinc oxide is an inorganic substance, the chemical formula is ZnO. Insoluble in water, soluble in acids and strong bases.
Zinc oxide is a white powder or hexagonal crystal. Smells, tasteless and sand-free.It turns yellow when heated and turns white again when cooled. It sublimates when heated to 1800℃. The hiding power is half that of titanium dioxide and zinc sulfide. The tinting power is twice that of basic lead carbonate. Zinc oxide is soluble in acid, concentrated hydroxide base, ammonia water and ammonium salt solution, but insoluble in water and ethanol.
Zinc oxide is a famous white pigment, the common name is zinc white. It has the advantage of not being black in the presence of H2S gas because ZnS is also white. When heated, ZnO gradually changes from white and light yellow to lemon yellow, and when cooled, the yellow will recede. Using this characteristic, it is mixed into paint or added to a thermometer to make a color-changing paint or thermometer. Because ZnO has the convergence and certain sterilization ability, it is often used in medicine to make an ointment. ZnO can also be used as a catalyst. Zinc oxide ZnO is used as an additive in many materials and products, including cosmetics, food supplements, rubber, plastics, ceramics, glass, cement, lubricants, coatings, ointments, adhesives, sealants, pigments, food, batteries, ferrite, flame retardants, and above all - adhesive tape. Although it occurs naturally as the mineral zinc, most zinc oxides are produced synthetically. Feel free to send an inquiry to get the latest price if you would like to buy Zinc Oxide ZnO powder in bulk.

Performance of Zinc Oxide ZnO powder:

Appearance and properties: white powder or hexagonal crystal. No smell, no taste, no sand. It turns yellow when heated, and turns to white again after cooling, and sublimates when heated to 1800℃. The hiding power is half that of titanium dioxide and zinc sulfide. Coloring power is twice that of basic lead carbonate.
Solubility: soluble in acid, concentrated alkali hydroxide, ammonia water and ammonium salt solution, insoluble in water and ethanol.

Technical Parameter of Zinc Oxide ZnO powder:

Purity%≥99.8%≥99.8%≥99.8%
Dry reduction%≤0.5≤0.5≤0.5
Burning reduction %≤3≤3≤3
Particle Size nm305090
PbO based on Pb content≤0.0001≤0.0005≤0.0001
MnO based on Mn content≤0.0001≤0.0001≤0.0001


How is Zinc Oxide ZnO powder produced?
Direct method:
1. Calcined by zinc carbonate.ZnCO3 = ZnO + CO2 write
2. from the calcination of zinc hydroxide decomposition.
3. smelting from crude zinc oxide into zinc, and then through high-temperature air oxidation from.
4. by the oxidation of molten zinc.
5. The methods used are indirect method with zinc ingot as raw material (also known as the French method), a direct method with zinc ore as raw material (also known as the American method) and wet method.
Indirect method:
Reaction equation: 2Zn+O2=2ZnO
Operation: The zinc ingot obtained by electrolysis method is heated to 600 ~ 700℃ after melting, placed in the high-temperature crucible, melting and gasification at 1250 ~ 1300℃, and then imported into hot air for oxidation. The generated zinc oxide is cooled and separated by the cyclone, and the fine particles are captured with cloth bags, that is, the finished zinc oxide is produced.
The direct method:
Reaction equation:
C+O2=CO2
CO2+C=2CO
ZnO+CO=Zn (vapor) +CO2
Zn (vapor) +CO+O2=ZnO+CO2
Operation method: the roasting zinc ore powder (or materials containing zinc), anthracite (or coke), limestone according to the ratio of 1:0. 5:0.05 prepared into a ball. After reduction smelting at 1300℃, zinc oxide in the ore powder is reduced to zinc vapor, which is then oxidized by air. The resulting zinc oxide is captured to produce zinc oxide finished products.
Wet method: Zinc sulfate is produced by reacting zinc ash with sulfuric acid, and then it is reacted with sodium carbonate and ammonia respectively. Zinc oxide is produced by using zinc carbonate and zinc hydroxide as raw materials. The reaction equation is as follows:
Zinc + - H2SO4 = ZnSO4 + H2 write
ZnSO4 + Na2CO3 = ZnCO3 left + Na2SO4
ZnSO4 nh3 · H2O + 2 = zinc (OH) 2 left + (NH4) 2 so4
Zinc oxide was prepared from zinc carbonate by washing, drying, calcining and crushing.Write ZnCO3 - > ZnO + CO2
Zinc oxide was prepared from zinc hydroxide by water washing precipitation, drying, calcination, cooling and grinding.Zinc (OH) 2 - > ZnO + H2O

Applications of Zinc Oxide ZnO powder:

Zinc oxide is a common chemical additive, which is widely used in plastics, silicate products, synthetic rubber, lubricants, paint coatings, ointments, binders, food, batteries, flame retardants and other products. The energy band gap of zinc oxide and the exciton can be large, high transparency, excellent normal temperature light-emitting properties, and are used in liquid crystal displays, thin-film transistors, light-emitting diodes such as a semiconductor. In addition, the zinc oxide of microparticles has also begun to play a role in the relevant fields as a nanomaterial.
1. Mainly used in rubber or cable industries, tonic and active agents, also do colorants and fillers for white gums, used as sulfurization in neoprene, etc.
2. In the fertilizer industry, the raw material gas is used in sulfur
3. Mainly used as white pigments, rubber vulcanized active agents, organic synthetic catalysts, desulfurizers for electrostatic copying, pharmaceutical, etc.
4. Desulfurization for synthetic ammonia, petroleum, the natural gas chemical raw material gas
5. Used as the matrix of analytical reagents, reference reagents, fluorescent agents and photosensitive materials
6. Used in electrostatic wet copying, dry transfer, laser fax communication, electronics electrostatic record and electrostatic platelet
7. Used in plastic industries, sunscreen cosmetics series products, special ceramic products, special functional coatings and textile hygiene processing, etc.
8. Widely used in the lack of industrial raw material gas such as ammonia, methanol and hydrogen production, oil, the water purification process
9. Used as a convergent medicine, used to make an ointment or rubber paste
10. used as white pigments for printing, paper, matches and pharmaceutical industries. A vulcanized active agent, reinforcing agent and colorant of natural rubber, synthetic rubber and latex are used in the rubber industry. It is also used in the manufacture of pigment zinc chrome yellow, zinc acetate, zinc carbonate, zinc chloride, and the like. Further, it is also used in electron laser materials, phosphor, feed additives, catalysts, and magnetic materials to produce feed additives to zinc supplements in feed processing.
11. Inorganic white pigment. It has no toner and titanium dioxide and a vertical powder. It is widely used in ABS resin, polystyrene, epoxy resin, phenolic resin, amino resin, and polyvinyl chloride and paint and ink coloring. In addition, the rubber industry can also be used as a vulcanizing active agent, a reinforcing agent, and a colorant. It is also used in the production of paint cloth, cosmetics, enamel, paper, leather, matches, cables, etc. It is also available for printing, glass industry, pharmaceutical industry, etc. It is also used as a desulfurizing agent for synthetic ammonia. Also used as electronic laser materials, phosphor, feed additive, magnetic material manufacturing, etc.
12. Nutritional supplement (zinc strengthening agent).
13. Zinc oxide is a feed nutrient reinforcement agent.
14. Mainly used as a reinforcing agent for rubber or cable to make rubber have good corrosion resistance, tear-resistance and elasticity. It is also used as a vulcanized activator of natural rubber, white rubber colorant and a filler, a vulcanizing agent of neoprene. The particle fine (about 0.1 μm of particle size) can be used as a light stabilizer of plastic such as polyolefin or polyvinyl chloride.
15. Desulfurization for synthetic ammonia gas.
16. Use as a paint of paint and rubber filler, medical for use in microcanoes, zinc paste, rubber paste, etc.
17. Suitable for supplements of zinc in feed processing.
18. Mainly used as white pigments, rubber vulcanized active agents, reinforcing agents, organic synthesis catalysts, desulfurizers.
19. Desulfurization for synthetic ammonia, petroleum, natural gas chemical gas.
20. Used as the matrix of analytical reagents, reference reagents, fluorescent agents, and photosensitive materials.
21. Mainly used for rubber or cable industries, tonic and active agents, also made of white gums, which are used as a vulcanizing agent in neoprene.
22. The University of Japan is developed by zinc oxide nanoparticles. Zinc oxide is often used in the production of baby talcum powder and other products, is a non-toxic inorganic, and the human body does not produce a reactive reaction, and there is high security. In addition, the volume of zinc oxide nanoparticles has a small volume and has the advantage of do not hinder cell activity.

Storage Condition of Zinc Oxide ZnO powder:
Zinc Oxide ZnO powder should be store in a cool, ventilated warehouse. Keep away from fire and heat. should be kept away from oxidizer, do not store together. The storage area should be equipped with suitable materials to contain the leakage.

 

Packing & Shipping of Zinc Oxide ZnO powder:
It is packed in double plastic bags inside, which can be filled with argon in a vacuum; it can be vacuumed and filled with argon for protection.
Zinc Oxide ZnO powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Zinc Oxide ZnO powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

Zinc Oxide ZnO powder Properties

Other NamesOxozinc, Zinc White, Zinc monoxide, Zinci Oxydum, Flowers of zinc,
Zincoid, Amalox, Ziradryl, Zincum, Oxydatum, Emanay zinc oxide,
zinc, oxo-, Zinci Oxicum, Ketozinc, Nogenol, Permanent White
CAS No.1314-23-4
Compound FormulaZnO
Molecular Weight81.37
AppearanceWhite Powder
Melting Point1,975° C (3,587° F)
Solubility in waterN/A
Density5600 kg/m3
Purity99.50%
Particle Size20nm-200nm
Boling point2,360° C (4,280° F)
Specific HeatN/A
Thermal ConductivityN/A
Thermal ExpansionN/A
Young's ModulusN/A
Exact Mass79.9241 g/mol
Monoisotopic Mass79.924061 Da
  
  

Zinc Oxide ZnO powder Health & Safety Information

Safety WarningWarning
Hazard StatementsN/A
Flashing pointN/A
Hazard CodesH410
Risk CodesN/A
Safety StatementsN/A
RTECS NumberZH4810000
Transport InformationUN 3077 9 / PGIII
WGK Germany2
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Oxide Powder

Green Nickel Oxide NiO CAS 1313-99-1

About Nickel Oxide NiO :
Nickel oxide is an inorganic substance with a chemical formula of NiO and a molecular weight of 74.71.
What is NiO in chemistry? 
Nickel(II) oxide is the chemical compound with the formula NiO. It is the principal oxide of nickel. Nickel(II) oxide is classified as a basic metal oxide. Several million kilograms are produced annually of varying quality, mainly as an intermediate in the production of nickel alloys. It is a green-black cubic crystal. It is soluble in acid and ammonia but insoluble in water. Is nickel oxide soluble? Nickel oxide is soluble in acids, potassium cyanide, and ammonium hydroxide. It is insoluble in both cold and hot water, and caustic solutions. The color turns yellow when heated. It is obtained by the action of nickel and oxygen at a temperature greater than 400°C, or by pyrolysis of nickel carbonate at 350°C. Used to make alloys, batteries, glass, enamel, ceramics, electronic components, nickel salts, and catalysts. 

Main properties of Nickel oxide
 

NamesNickel(II) oxide, Nickel monoxide, Oxonickel, NiO
CAS No.1313-99-1
Compound FormulaNiO
Molecular Weight74.69 g/mol
AppearanceGreen Powder
Melting Point1955 °C (3551 °F)
Solubility in waterN/A
Density6.67 g/cm3
Purity99.98%
Particle Size6.93um
Exact Mass73.9303
Monoisotopic Mass73.9303

 
What is the charge of NiO? 
0 is the charge of NiO.
Nickel oxide is the main oxide of nickel. It is classified as an alkali metal oxide. Millions of kilograms of products with different qualities are produced every year, mainly as intermediates for nickel alloy production. The mineral form of NiO (arsenite) is very rare. The protection of other nickel(III) oxides, such as Ni2O3 and NiO2 is also claimed but has not been proven by X-ray crystallography.
Orachemicals is a trusted global Nickel Oxide NiO supplier. Feel free to send an inquiry about the latest Nickel Oxide price at any time. NiO adopts NaCl structure with octahedral Ni2+ and O2-positions. Conceptually simple structures are often called rock salt structures. Like many other binary metal oxides, NiO is usually not stoichiometric, which means that the Ni:O ratio deviates from 1:1. In nickel oxide, this non-stoichiometric NiO is accompanied by a color change. The stoichiometric correct NiO is green, and the non-stoichiometric NiO is black.

Performance of Nickel Oxide NiO Powder :
Nickel oxide is obtained by the action of nickel and oxygen at greater than 400℃, or by pyrolysis of nickel carbonate at 350℃. Used for making alloys, batteries, glass, enamel, ceramics, electronic components, nickel salts, and as a catalyst.


How is Nickel Oxide NiO produced?
NiO can be prepared by various methods. When heated to above 400°C, nickel powder reacts with oxygen to form NiO. In some commercial processes, green nickel oxide is made by heating a mixture of nickel powder and water at 1000°C. The reaction rate can be increased by adding NiO.
The simplest and most successful preparation method is to pyrolyze nickel (II) compounds (such as hydroxides, nitrates and carbonates) to produce a light green powder. By heating the metal in oxygen, the synthesis of the elements can produce gray to black powder, which indicates that the stoichiometry is wrong. It combines with sodium and potassium oxides at high temperatures (> 700°C) to form corresponding nickelates.
In addition, nickel oxide nanoparticles can be produced by thermally decomposing newly prepared nickel hydroxide through a sol-gel route at 300°C (572°F). X-ray diffractometer and vibrating sample magnetometer can be used to characterize the nickel oxide nanoparticles produced by this method.

Technical Parameter of Nickel Oxide NiO Powder :

NiCoCuFeZnSCa+Mg+Nainsoluble in HCl
76.87%0.024%0.01%0.018%0.007%0.02%0.56%0.007%


Application of Nickel Oxide NiO Powder :
NiO has a variety of professional applications. Usually, it is used to distinguish between "chemical grade" and "metallurgical grade". "Chemical grade" is a relatively pure material used for special applications, while "metallurgical grade" is mainly used to produce alloys. Used in the ceramic industry to manufacture glass powder, ferrite, and enamel. The sintered oxide is used to produce nickel steel alloys. Charles Edouard Guillaume (CharlesÉdouard Guillaume) won the 1920 Nobel Prize in Physics for his research on nickel-steel alloys, which he called Invar and Invar. 
What is nickel oxide used for?
Nickel oxide has a range of applications such as: For making electrical ceramics such as thermistors and varistors e.g. ferrites (nickel-zinc ferrite) Pigments for ceramic, glasses, and glazes.
NiO is a commonly used hole transport material in thin-film solar cells. It is also a component of nickel-iron batteries (also known as Edison batteries) and a component of fuel cells. It is the precursor of many nickel salts, used as specialty chemicals and catalysts. Recently, until the development of environmentally friendly NiMH batteries, NiO was used to manufacture NiCd rechargeable batteries used in many electronic devices.
Is nickel oxide toxic? 
CLINICAL FEATURES: ACUTE EXPOSURE Although nickel oxide is a pulmonary irritant, acute exposure is unlikely to result in significant poisoning. Documented clinical cases invariably involve chronic occupational inhalation.

NiO is an anode electrochromic material and has been extensively studied as a counter electrode of tungsten oxide and cathode electrochromic material in complementary electrochromic devices.
NiO is used as a binder and colorant for enamel in the pusher industry.
The ceramic industry is used as a raw material for colorants.
Used as a raw material for nickel-zinc ferrite in the production of magnetic materials.
Colorant for stained glass and tubular glass bulbs in the glass industry.
It is also a material used to manufacture nickel salts, nickel catalysts and secondary batteries.
Nickel oxide can react with acids to form salts and other compounds, such as nickel oxide. Nickel sulfamate for electroplating and nickel molybdate for hydrodesulfurization catalyst
Gold-doped nickel oxide films can be used as transparent electrodes in optoelectronic devices.

Storage Condition of Nickel Oxide NiO Powder :

 Nickel Oxide NiO Powder should be stored in a cool, ventilated warehouse. Keep away from fire and heat. It should be stored separately from acids and edible chemicals. Please avoid mixing, and the storage area should be equipped with suitable materials to contain the leakage.


Packing & Shipping of Nickel Oxide NiO Powder :
It is packed in double plastic bags inside, which can be filled with argon in a vacuum; it can be vacuumed and filled with argon for protection..
 Nickel Oxide NiO Powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
 Nickel Oxide NiO Powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

Green Nickel Oxide NiO Powder Properties

Other NamesNickel(II) oxide,Nickel monoxide, Oxonickel, NiO
CAS No.1313-99-1
Compound FormulaNiO
Molecular Weight74.69 g/mol
AppearanceGreen Powder
Melting Point1955 °C (3551 °F)
Solubility in waterN/A
Density6.67 g/cm3
Purity99.98%
Particle Size6.93um
Boling pointN/A
Specific HeatN/A
Thermal ConductivityN/A
Thermal ExpansionN/A
Young's ModulusN/A
Exact Mass73.9303
Monoisotopic Mass73.9303
  
  

Green Nickel Oxide NiO Powder Health & Safety Information

Safety WarningDanger
Hazard StatementsH317-H350i-H372-H413
Flashing pointN/A
Hazard CodesT
Risk Codes11
Safety Statements53-45-61
RTECS NumberQR8400000
Transport InformationNONH
WGK Germany1
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