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Definition of manganese oxide

There are several manganese oxides, the commonest being MnO2 (pyrolusite). It is used as a coloring oxide (red or purple); mixed with the oxides of cobalt, chromium, and iron, it produces a black. This oxide is also used to color facing bricks, and to promote adherence of ground-coat vitreous enamels to the base metal.

See Also: Manganite, Psilomelane, manganese oxides

Ref: Dodd


 
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