Molecular formula: Co2O3 MW: 165.86 Characters: Black and gray powder, gradually dissolve in hydrochloric acid and hot dilute sulfuric acid in the heat and release chlorine and oxygen, respectively, do not dissolve in water and alcohol. Cobalt (Co)% at least 72 Iron (Fe)% not more than 0.2 Nickel (Ni)% not more than 0.2 Manganese (Mn)% not more than 0.05 Fineness: 99.3% of passed 200 mesh...

