Why manganese dioxide can be used in rubber industry to increase the viscosity of rubber?
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Author : Lzh
Update time : 2023-02-05 13:54:12
What is manganese dioxide? Manganese dioxide, an inorganic compound with a chemical formula of MnO2, is a black amorphous powder or black rhombic crystal, which is insoluble in water, weak acid, weak base, nitric acid, cold sulfuric acid, and is dissolved in concentrated hydrochloric acid under heating to produce chlorine. It is used for the preparation of manganese salts and as an oxidant, rust remover, catalyst, and acid-base property: manganese dioxide is an amphoteric oxide, a very stable black powdery solid at normal temperature; it can be used as a depolarizer for dry cells. Its oxidizing property is often used in the laboratory to react with concentrated HCl to produce chlorine.
Chemical properties of manganese dioxide Manganese dioxide is a strong oxidant in acidic media. Manganese dioxide is an octahedral structure, with oxygen atoms on the top of octahedral corners, manganese atoms in octahedrons, and octahedral edges connected to form single or double chains. These chains share the top with other chains to form a gap tunnel structure. The octahedron is either hexagonal or square. Manganese dioxide is an amphoteric oxide; There is a salt in the form of corresponding perovskite structures such as BaMnO3 or SrMnO3 (obtained by the combination reaction in the molten alkali system). There is also manganese tetrachloride. When it meets the reducing agent, it is shown to be oxidizing. For example, manganese dioxide is heated to 1400K in the hydrogen gas stream to obtain manganese oxide. Manganese dioxide is heated in the ammonia gas stream to obtain brownish black manganese dioxide: manganese dioxide is reacted with concentrated hydrochloric acid to obtain manganese chloride, chlorine, and water show reducibility when meeting strong oxidants. If manganese dioxide, potassium carbonate, and potassium nitrate or potassium chlorate are mixed and melted, a dark green melt can be obtained. If the melt is dissolved in water and cooled, potassium manganate, a compound of hexavalent manganese, can be obtained. It is a strong oxidant in acidic media. Strong oxidants do not burn themselves but support combustion. Please do not put them together with inflammable.
Safety of manganese dioxide Rat oral LDso:>40mmol/kg. Manganese oxide dust can cause human manganese pneumoconiosis. The staff should be well protected. The working environment should be well-ventilated. It should be stored in a cool, dry, and well-ventilated warehouse. It should be kept away from kindling and heat sources. The packaging should be sealed and not in contact with the air. It should be protected from moisture and sun. It should be stored separately from reducing agents, inflammable, combustibles, oxidizing agents, etc.
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 us or inquire any time.
