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Preparation And Application of Manganese Dioxide

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Update time : 2020-07-09 09:12:49

What is manganese dioxide?

Manganese dioxide is a black or brown solid. It is the most stable oxide of manganese and often occurs in pyrolusite and manganese nodules. It is insoluble in water, weak acid, weak base, nitric acid, cold sulfuric acid, and soluble in concentrated hydrochloric acid when heated to produce chlorine gas.


Preparation of manganese dioxide

Natural mineral pyrolusite and manganese carbonate were used as raw materials to prepare manganese dioxide by electrolysis of high temperature manganese sulfate solution. The preparation of manganese sulfate solution includes leaching, iron removal, neutralization, heavy metal removal, filtration, standing calcium and magnesium removal and other procedures. After high temperature electrolysis, the crude product is prepared, and then the qualified crystal is prepared by treatment including stripping, grinding, washing, neutralization and drying.

Applications of manganese dioxide

Used as depolarizer for dry cells, catalyst and oxidant for synthesis industry, colorant, colorant and iron remover for glass industry and enamel industry. Used for manufacturing manganese metal, special alloys, ferro manganese castings, gas masks and electronic materials ferrite, rubber industry to increase the viscosity of rubber .It can also be used as a catalyst in chemical experiments.

TRUNNANO (aka. Luoyang Tongrun Nano Technology Co. Ltd.) is a trusted global chemical material supplier & manufacturer with over 12 years experience in providing super high quality chemicals and Nano materials. The manganese dioxide produced by our company has high purity, fine particle size and impurity content. Lower, please contact us if necessary.

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