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The Properties And Application of Manganese Dioxide Powder

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Update time : 2021-06-01 10:24:32
Manganese dioxide is an inorganic compound with a chemical formula of MnO2. Manganese dioxide is a black amorphous powder or black orthorhombic crystal.

Manganese Dioxide Properties:

Manganese dioxide is insoluble in water, weak acid, weak alkali, nitric acid, and cold sulfuric acid. Under heating, manganese dioxide dissolves in concentrated hydrochloric acid to produce chlorine gas.

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), as well as manganese tetrachloride.

When 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 chlorination 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. It is a strong oxidant in acid medium.


Manganese Dioxide Application:

Manganese dioxide is used as a depolarizer for dry batteries, as a catalyst and oxidant in the synthesis industry, as a coloring agent, decolorizer, and iron remover in the glass industry and enamel industry.

Manganese dioxide is used to manufacture metallic manganese, special alloys, ferromanganese castings, gas masks, and electronic material ferrites. In addition, manganese dioxide can also be used in the rubber industry to increase the viscosity of rubber. Manganese dioxide can also be used as a catalyst in chemical experiments.

In the laboratory, manganese dioxide is used as a catalyst when hydrogen peroxide is decomposed to produce oxygen, and as a catalyst when potassium chlorate is decomposed to produce oxygen. Manganese dioxide and elemental aluminum powder undergo thermite reaction to produce manganese and manganese dioxide. Used as pigments, yellow glass, etc.

Luoyang Trunnano Tech Co., Ltd (TRUNNANO) is a professional manganese dioxide powder with over 12 years experience in chemical products research and development. We accept payment via Credit Card, T/T, West Union and Paypal. Trunnano will ship the goods to customers overseas through FedEx, DHL, by air, or by sea.

If you are looking for high quality manganese dioxide powder, please feel free to contact us and send an inquiry.
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