Chemical Properties
Violet-red rhombic crystal. Insoluble in cold water, soluble in acid, ammonium carbonate and liquid ammonia. Decomposed in hot water. Suspended in water surface, can be absorbed by carbon dioxide. Preparation: Add sodium carbonate solution to cobalt ethanol and get it.
Physical properties
Red violet crystal; insoluble in water; decomposes in hot water; soluble in dilute acids and ammonia.
Uses
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.
