Cobalt sulfate heptahydrate（Co21%）

Formula:  CoSO₄.7H₂O 
CAS No.: 10026-24-1
M.W.: 281.10
Appearance: Brown yellow or red crystal.
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(%): 

Items	High-grade
Assay (Co)	21 min%
Ni	0.001%max
Fe	0.001%max
Cu	0.001%max
Zn	0.001%max
Pb	0.001%max
Mn	0.001%max
As	0.001%max
Na	0.001%max
Water Insoluble matter	0.01%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.
Packing: 25kg net bags.