It used for glass, ceramics, coloration, electronics, battery and war industry. It used for glass, ceramics, coloration, electronics, battery and war industry. Name: Cobalt Oxide Item Index(%) Test Result(%)Co 72 Min.72.49Ni0.15 MaxEligibleFe0.20 MaxEligibleZn0.20 MaxEligibleCu0.20EligiblePb0.006 MaxEligibleCd0.006 MaxEligibleMn0.20 MaxEligibleAs0.005 MaxEligible Cobalt Oxide