Product name: Cobalt Oxide Co: 72.0%Min. Ni: 0.2%Max. Fe: 0.05%Max. Mn: 0.2%Max. Cu: 0.15%Max. Zn: 0.05%Max. Total Ca, Mg, Na: 0.50%Max. Hydrogen chloride insoluble matter: 0.20%Max. Package: in 50kg iron drum or 25kg fiber drum.