Formula: CoSO₄ . 7H₂O
CAS NO.:10026-24-1
M.W: 281.10
Properties: It is a red crystal with light brown, soluble in water and methanol, but slightly soluble in ethanol and easily effloresces in air. Its specific gravity is 1.948.
Specification:(%)

 

	High-grade	First-grade
Assay (Co)	20 min.	20 min.
Water-insoluble-matter	0.02 max.	0.02 max.
Chloride (Cl)	0.05 max.	0.1 max.
Nitrate(NO3)	0.05 max.	0.1 max.
Mn	0.05 max.	0.05 max.
Fe	0.002 max.	0.005 max.
Ni	0.1 max.	0.1 max.
Zn	0.05 max.	0.05 max.
Heavy Metal (as Cu)	0.005 max.	0.02 max.

 

Application: As starting material for making other cobalt salts; as a drying agent for paintings, cobalt pigment and glazed colored porcelain, additive of alkaline batteries and Co source for electroplating.
Storage: Store at a dry place. Avoid heating and damp.
Packing: 25Kg net. Double plastic bags lined plastic woven sack.

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