CoO 1.Co 77.5-78.5% 2.Impurity Max each Ni0.02%, Fe/Ca/Mg/Na/Si0.005%, Mn/Cu/Zn0.003% 3.Size 0.45um Co3O4 1.Co 72.6-73.6% 2.Impurity Max each Fe0.01%, Cu0.003%, Ca/Ni/Mg/Zn/Mn0.005%, Na/Si0.015% 3.Size 4-6um Packing 25kgs in plastic bag with iron drum outside
