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Overview of manganese dioxide

wallpapers News 2021-08-04
Manganese dioxide is an amphoteric oxide. It is a very stable black powdery solid at room temperature and can be used as a depolarizer for dry batteries.
Physical properties: black amorphous powder, or black orthorhombic crystals.
Solubility: hardly soluble in water, weak acid, weak base, nitric acid, cold sulfuric acid, and soluble in concentrated hydrochloric acid under heating to produce chlorine.
The property of manganese dioxide
Acidity and alkalinity: Manganese dioxide is an amphoteric oxide. It is a very stable black powdery solid at room temperature and can be used as a depolarizer for dry batteries. It is often used in the laboratory to produce chlorine by its oxidizing property and the action of concentrated HCl:
Manganese dioxide is a strong oxidant in acid medium.
Manganese dioxide is a [MnO₂] octahedron. The oxygen atom is on the top of the octahedron, and the manganese atom is in the octahedron. [MnO₂] octahedrons are connected together to form a single or double chain. These chains and other chains co-top to form The tunnel structure of voids, octahedrons or hexagonal close-packed, or square close-packed.
Manganese dioxide is an amphoteric oxide, and 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, and manganese tetrachloride is also present.
When encountering reducing agents, 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 l chlorine Manganese, chlorine and water.
When encountering strong oxidants, it is also reducible. 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.
Strong oxidizer, does not burn by itself, but supports combustion, do not put it together with flammable materials.
As a catalyst in the decomposition of potassium chlorate [KClO3] and the decomposition of hydrogen peroxide (hydrogen peroxide, H2O2):
Manganese dioxide Supplier
TRUNNANO (aka. Luoyang Tongrun Nano Technology Co. Ltd.) is a trusted global Manganese dioxide powder supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials. Currently, our company has successfully developed a series of materials. The Manganese dioxide powder produced by our company has high purity, fine particle size and impurity content. For the latest price of Manganese dioxide powder, send us an email or click on the needed products to send an inquiry.
 
 
 
 

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