Cobalt(II) carbonate hydroxide

Physical properties

Red violet crystal; insoluble in water; decomposes in hot water; soluble in dilute acids and ammonia.

The Uses of Cobalt(II) carbonate hydroxide

The cobalt carbonate basic salt is the commercially-used cobalt carbonate. It is used primarily for manufacturing cobalt pigments. It also is used to prepare cobalt(II) oxide and other cobalt salts.

Preparation

The basic carbonate is prepared by adding a solution of sodium carbonate to a cobalt(II) acetate or other Co2+ salt solution. The precipitate is filtered and dried.