What does "cobaltic" mean?

Cobaltic: Pertaining to, derived from, or containing, cobalt; -- said especially of those compounds in which cobalt has higher valence; as, cobaltic oxide. Luteo-cobaltic compounds (Chem.), an extensive series of complex yellow compounds of ammonia and cobaltic salts. -- Roseo-cobaltic compounds (Chem.), an extensive series of complex red compounds of cobalt and ammonia. Modifications of these are the purpureo-cobaltic compounds.

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