Why can manganese dioxide be used as a depolarizer for dry batteries?
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Author : Lzh
Update time : 2023-02-05 13:33:39
What is manganese dioxide? Manganese dioxide with a melting point of 535 ℃ (decomposition). It is soluble in hydrochloric acid and emits chlorine gas. It is insoluble in water, acetone, nitric acid, or concentrated sulfuric acid. Still, in the presence of hydrogen peroxide or oxalic acid, it is soluble in dilute sulfuric acid or nitric acid. It has strong oxidizability. And flammable substances, Organic substances are easy to ignite and burn in contact with hydrogen peroxide. They react explosively with hydrogen peroxide. They can ignite in contact with hydrogen sulfide. .
Preparation of manganese dioxide It is mainly from the natural mineral pyrolusite. Manganese carbonate and pyrolusite can be used as raw materials. The Preparation of manganese sulfate solution includes leaching, iron removal, neutralization, heavy metal removal, filtration, static removal of calcium and magnesium, and other processes. After high-temperature electrolysis, crude products are prepared and processed, including stripping, crushing, washing, neutralization and drying, to produce qualified crystals. When manganese chloride solution is used for electrolysis, fibrous manganese dioxide can be prepared. There are also manganese carbonate and manganese nitrate thermal decomposition, prepared by direct oxidation of low manganese oxide and oxidants such as sodium chlorate, chlorine, oxygen, etc.
Uses of manganese dioxide Manganese dioxide mainly acts as a depolarizer in dry batteries. It is a very good decolorizer in the glass manufacturing industry. It can oxidize low iron salts into high iron salts, turning the glass's blue-green color into weak yellow. It is used in the electronic industry to make manganese zinc ferrite magnetic materials. It is used as a raw material for ferromanganese alloys in the steel-making industry, a heating agent in the casting industry, and an absorbent for carbon monoxide in the gas mask.
Price of manganese dioxide Manganese dioxide particle size and purity will affect the product's price, and the purchase volume can also affect the cost of manganese dioxide. A large amount of large amount will be lower. The price of manganese dioxide can be found on our company's official website.
Manganese dioxide supplier Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including manganese dioxide, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective manganese dioxide, you are welcome tocontact usor inquire any time.
