magnesium nitrate liquid – A convenient and effective way to provide nutrients to plants
The liquid magnesium nitrate fertilizer contains 6.3% magnesium, which is an essential nutrient for plants, and 7% nitrate nitrogen. It is used as a foliar feeding to prevent or correct nutrient deficiencies in crops and can also be applied through irrigation systems.
Magnesium nitrate is an inorganic hygroscopic salt consisting of magnesium, nitrogen and oxygen with the chemical formula Mg(NO3)2. It naturally occurs as nitro magnesite (Mg(NO3)2 + NO2), which is found in caverns and mines.
It is a strong oxidizing agent that emits toxic fumes of nitrogen oxides when heated to decomposition. Exposure to this compound in the workplace can cause nausea, vomiting, weakness and collapse.
Several factors contribute to the production of magnesium nitrate. Some of them are the presence of magnesite, the concentration of the nitric acid solution, and the temperature at which the nitric acid is added to the reaction mixture.
In the reaction mixture, magnesite is added to an aqueous solution of nitric acid for 1 hour. After this, the mixture is stirred for up to 2 hours.
After the magnesite has been added, the pH of the reaction mixture is measured, which must be at least 4.0. If it is not, the magnesite is neutralized to pH 4.
After stirring for at least 15 hours, the liquid magnesium nitrate fertilizer slurry is discharged from the reactor 1 into container 4 and cleaned with a filter 6 having a pore diameter of 25 um. This fertilizer is either used as the final product or mixed with the sediment of the reaction mixture in container 5 and is then filtered.