二氧化锰

It is used as an oxidizing agent in organic synthesis such as oxidation of allylic/benzylic alcohols, as a textile dye, as a reducing agent, and as a component of dry cell batteries such as zinc-carbon battery and alkaline battery. It is also used in making pigments for glasses and ceramics, and drier for paints. Further it is used in the manufacture of manganese steel and several manganese derivatives including potassium permanganate, a powerful versatile oxidant. Catalytic hydration of nitriles to amides by flowing through manganese dioxide has been reported. Manganese dioxide supported on inorganic oxide can be used for oxidation of methylamine through CWAO (Catalytic Wet Air Oxidation). It has high potential as highly efficient and robust material for water oxidation reaction (WORs).

At temperatures above 550°C, manganese (IV) oxide forms manganese (III) oxide and oxygen. It can slightly stain the skin, which can be washed off with some rubbing.

MFCD00003463

215-202-6

MnO₂

86.94

535° dec.

5.026

Ambient temperatures.

Powder

Insoluble in water

14,5730

20/22
Harmful by inhalation and if swallowed.

25
Avoid contact with eyes.

OP0350000

 

是

 

H302-H332
Harmful if swallowed.Harmful if inhaled.

P261-P264-P270-P304+P340-P301+P312a-P501a
Avoid breathing dust/fume/gas/mist/vapours/spray.Wash thoroughly after handling.Do not eat, drink or smoke when using this product.IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.Dispose of contents/container in accordance with local/regional/national/international regulations.