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Common metal oxide
- Aug 22, 2016 -

Copper oxide

Copper oxide (CuO) is a black copper oxide, slightly bisexual, slightly hygroscopic. Relative molecular mass is 79.545, the density is 6.3~6.9 g/cm3, melting-1326. Insoluble in water and alcohol, soluble in acid, ammonium chloride and potassium cyanide solution, slow dissolves in ammonia solution, can react with alkali. Copper oxide is mainly used to make rayon, ceramic, enamel and enamel, batteries, petroleum desulfurizer, pesticides, catalysts for hydrogen production, and green glass.

Iron oxide

Iron oxides, alias Burns limonite, burnt sienna, and oxide of iron, iron oxide red, red, Venetian red (mainly composed of iron oxide), and ferric oxide. Chemical formulas Fe2O3 soluble in hydrochloric acid, is a reddish-brown powder. Its reddish brown powder as a crude form of pigments, industry says red iron oxide, used in paints, printing inks, rubber industry, can be a catalyst, glass, precious stones, metal Polish, used for iron.

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