Molecular formula: Co3O4 CAS No.: [1308-06-1] Other names: Cobalt oxide, cobalt(II, III) oxide, cobaltosic oxide, tricobalt tetroxide Molecular weight: 241 Character: Gray powder. Usage: Used for making paint pigments, ceramic glazes and cobalt catalysts. Storage: At a dry place with good ventilation, avoid heat and humidity. Standard in force: Enterprise standard Package: In bucket, 25 KG or 50 KG per bucket, Or subject to clients'requirements.