Manganese Dioxide | Tradeasia International
Free quote

Manganese Dioxide

Manganese Dioxide Manganese Dioxide
IUPAC Name
Dioxomanganese
HS Code
28201000
Formula
MnO2
Appearance
Brown-Black Solid
Cas No.
1313-13-9
Common Names
Manganese peroxide, Manganese superoxide
Packaging
- 25kg or 50kg plastic woven bags lined with plastic bags
Category
  • Oxides
  • Construction
  • Electronics and Electric
  • Glass
  • Mining and Metallurgy
  • Paints and Coatings
Sub Category
  • Electronic
  • Others

Brief Overview

Manganese dioxide is an inorganic compound with the formula MnO2. It is a blackish or brown solid.  The main ore of manganese, mineral pyrolusite, which is a naturally a occurring manganese species, is attractive for its ability to attract heavy metals, such as iron and manganese as well as for the co-precipitation of arsenic.

 

Manufacturing Process

Manganese dioxide is produced by mixing a manganous salt with alkali metal permanganate and/or ammonium permanganate. Reaction mixture is then heated to about 150°C in atmosphere containing oxygen until more than 85% of the manganous salt is converted to manganese dioxide and then further elevating the temperature to about 250°C.

Metallurgy Industry

Manganese dioxide is used in metallurgy industry as a melting agent in welding fluxes, electrode coatings and casting powders; to prevent absorption of manganese from the metal by the slag; improves the adhesion between the metal and the enamel top layer.

 

Electrical Industry

MnO2 is used for dry cell batteries, such as the alkaline battery and the zinc-carbon battery.

 

Glass Industry

In the glass industry, it is used as colour pigment for purple and black glass, it promotes oxidation of organic components.

 

Construction Industry

In the construction industry, MnO2 is used for the production of sand and cement, as a pigment for concrete.

 

Other Applications

Manganese dioxide is used as a drying agent; it catalyzes the oxidation of oils in paints and varnishes.

Related Products

Check out the following similar chemical products available at the best and competitive price on Chemtradeasia: