Specification :

Formula: CoSO4.7H2O
CAS No.: 10026-24-1
M.W.: 281.1

Properties: Brown yellow or red crystal, density: 1.948g/ cm3, melting point: 96.8° C, freely soluble in water and methanol, slightly soluble in ethanol. It rime into anhydrous compound at 420° C

Specification( % ) :
Assay( Co) 21 % min 20 % min
Iron( Fe) 0.002 % max 0.005 % max
Copper( Cu) 0.002 % max 0.005% max
Nickel( Ni) 0.1% max 0.1% max
Zinc ( Zn) 0.001% max 0.005% max
Lead( Pb) 0.002 % max 0.004% max
Magnesium( Mn) 0.005% max 0.005% max
Cadmium( Cd) 0.002% max 0.005% max
Water insoluble substance 0.02% max 0.05% max

Application: Used as paint drier in coating industry, glaze for painted china in ceramic industry, additives for alkaline battery and lithopone in the battery industry. Also used in producing pigment containing cobalt and material for cobalt salt. Besides, it is also used in electroplating, catalyzed, additive for feedingstuff, analyzing reagent.

Storage: Store in a dry place. Avoid heating and damp