Cobalt Oxide


Chemical information

Cobalto, óxido de; Tetraóxido de tricobalto; Tricobalt Tetroxide.
Chemical formula: Co3O4 = 240.8.
CAS — 1308-06-1.


In BP(Vet).

BP(Vet) 2008

(Cobalt Oxide). It consists of cobalt (II, III) oxide (tricobalt tetroxide) with a small proportion of cobalt (III) oxide (dicobalt trioxide). A black powder. Practically insoluble in water; dissolves in mineral acids and in solutions of alkali hydroxides.


Cobalt oxide is used in veterinary practice for the prevention of cobalt deficiency in ruminants. The chloride and sulfate have been used similarly. For the adverse effects of cobalt, see Cobalt Chloride, above.
Published April 26, 2019.