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What is it? MnO2 Oil ? Manganese dioxide has an organic compound chemical formula of MnO2. It can be found as a black amorphous crystal or black orthorhombic stone. It is insoluble when it comes into contact with water, weak acids, weak bases, nitric and cold sulfuric. Used as an oxidant, catalyst, and rust remover in the preparation of manganese-salts.
The properties of MnO2 powder
1. Acidity and acidity: Manganese dioxide is an amphoteric dioxide. This is a stable, black powdery solid at ambient temperature that can be used to make dry batteries depolarizing. Its oxidizing ability is frequently used in laboratories. In order to make chlorine gas, it reacts with concentrated HCl.
2. Manganese dioxide can be described as an amphoteric ore, and there are also corresponding salts such as BaMnO3/SrMnO3 (obtained from a compound reaction in an alkali system), [1], and manganese trichloride. .
3. The reaction of a reducing agent with an oxidizing agent is known as oxidizing. To make manganese oxide, heat manganese dioxide to 1400K in hydrogen stream. To make brown-black manganese triooxide, heat manganese dioxide to ammonia stream. Then, react with concentrated hydrochloric acid for chloride manganese and chlorine.
4. The strong oxidants also have a reduced form. When manganese dioxide and potassium carbonate or potassium nitrate are combined and melted, you can get a dark green melting solution. This can be used to dissolve in water and cool the melt to produce potassium manganate. It is a strong oxidant when used in acidic media.
5. Strong oxidant. It does not burn by its own, but it supports combustion.
6. As a catalyst [1] for the reaction of potassium chlorate (KClO3) decomposition, and hydrogen peroxide(hydrogen peroxide H2O2) decay.
Manganese Dioxide Properties
Other Titles manganese oxide, MnO2 powder
No. 1313-13-9
Combination Formula MnO2
Molecular Weight 86.94
Appearance Black Powder
Melting Point 535 degC
Boiling Point N/A
Density 5.03 g/cm3
Solubility of H2O Insoluble
Exact 86.9279
Manganese Dioxide MnO2 CAS 1313-13-9
Application of MnO2 Powder
1.Organic Synthesis
Manganese dioxide can be used in organic chemistry. Manganese oxide can be used in various forms. This is because manganese dioxide has multiple crystal forms. The chemical formula for manganese dioxide is MnO2x(H2O),n. Where x is between 0 to 0.5 and n is greater than 0. You can make manganese dioxide by reacting potassium permanganate with manganese sulfate at different pH.
One chemical reaction that manganese dioxide has is the conversion alcohols to aldehydes. Even if alcohols have double bonds they won’t be oxidized with manganese dioxide. No matter how active a product may be, it will not again be oxidized. Manganese dioxide can oxidize diols into dialdehydes. You can use manganese dioxide to oxidize aromatics, trils, and amines in many other ways.
2.Laboratory use
It can be used in a reaction with elemental aluminium powder to get manganese. Used to make yellow glass, pigments, etc. To produce chlorine, heat concentrated hydrochloric Acid in hot water; then react with molten potassium potash in the air to create potassium manganate. In the decomposition process of potassium permanganate manganese dioxide serves as the high Potassium Manganate autocatalyst.
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