Cobalt Sulfate

 

Formula : CoSO4.7H2O

M.W. : 281.10

Specific Gravity : 1.948

 

Properties : It is a red crystal with light brown, soluble in water and methanol, slightly soluble in ethanol, easily effloresces in air.

 

Specification (%) :

 

                                        High Grade              First Grade

Assay (As Co)                20 Min.                   20 min.

Water Insoluble               0.02 Max.               0.02 Max.

Chloride (Cl)                    0.05 Max.               0.1 Max.

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 (Cu)             0.005 Max.              0.02 Max.

 

Application : As starting material for making othe cobalts salts, as agent for painting, cobalt pigment and glazed colored porcelain, additive of alkaline batteries and Co source for electroplating.

 

Storage : Store at dry place, avoid heating and damp.

 

Packing : In 25 kgs net double plastic bag lined plastic woven sack.