Cobalt Sulfate 1,co:21%min 2,use:applies to cobalt salt, drying agent for painting, cobalt pigment... 3,origin:Zhejiang,China Cobalt SulfateStructural ... easily effloresces in air.Use:Applies to cobalt salt, drying agent for painting, cobalt pigment, additive of alkaline batteries and ... electroplating.Package:25/750 Kg plastic bags.Cobalt Sulphate Parameters Co≥ 20.0 21.0Ni≤ 0. ...