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Cobalt Sulphate Heptahydrate

[2011-8-4]


Molecular Formula :  CoSO4 .7H2O

Molecular Weight  : 281.10

CAS NO. : 10026-24-1

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.

Use : 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 woven bags lined with plastic bag(special packing can be made according to clients' requirement).

Specification   ( % )

Item

Spec.

Assay (Co)

21.0 min.

Ni

0.001 max.

Cu

0.001 max.

Mn

0.001 max.

Fe

0.001max.

Zn

0.001 max.

Pb

0.001 max.

Cd

0.001 max.

Ca

0.001 max.

Mg

0.001 max.

Na

0.001 max.

As

0.001 max.

K

0.001 max.

Cr

0.001 max.

Chloride (Cl)

0.05 max.

Nitrate(NO3)

0.05max.

Insoluble in Water

0.02 max.

Zn

0.05 max.

Heavy Metal (as Cu)

0.005 max.



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