Copper forms two oxides, copper(I) oxide (cuprous oxide, Cu2O) a red powder and copper(II) oxide (cupric oxide, CuO) a black powder. Cu2O has some scientific uses, including use as a superconductor. CuO is the main product when copper is heated in air. The mineral cuprite, a red colored crystal, is copper(I) oxide.
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Copper acetates are used as an intermediate in the manufacture of Paris green (cupric aceto-arsenite); as a catalyst in a number of organic reactions including rubber aging; as a chemical in textile dyeing; and as a pigment for ceramics.
Cupric oxide is used in the ceramic industry for imparting blue, green or red tints in glasses, glazes and enamels.
Is a basic copper chloride and is usually manufactured either by the action of hydrochloric acid on copper metal or by the air oxidation of cuprous chloride suspensions.
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