Cobalt sulfate heptahydrate Cobalt sulfate heptahydrate Synonyms: bieberite; cobalt(II) sulfate (1:1) heptahydrate; Cobaltous sulfate, heptahydrate; Cobalt(II)Sulfate Heptahydrate; Cobalt monosulfate, heptahydrate; Cobalt sulfate, 7-hydrate; COBALT SULFATE, 99.999%; Sulfuric acid, cobalt salt, heptahydrate; sulfuric acid, cobalt(2+) salt (1:1), heptahydrate; Cobalt (II) Sulfate Heptahydrate CAS NO.: 10026-24-1 Formula: CoSO4.7(H2O) Weight: 281.1