Properties: Light brownish red crystal, soluble in water And methanol, slightly soluble in ethanol and easily effloresces in air.

Specification: 
Co: 21.2% min.                                                   
Ni: 0.0008% max.               

Cd: 0.001% max.                                                

Cr: 0.0002% max.                                               

Ca: 0.001% max.                                                

Na: 0.001% max.                                                

As: 0.001% max.                                                 

NO3: 0.01% max.                                                

PH: 5 min.                                                           

Usage: Applies to cobalt salt,drying agent for painting Cobalt pigment, additive of alkaline batteries and electroplating.