What is cobalt sulfate heptahydrate used for? Is cobalt sulfate soluble? What Colour is cobalt sulphate? What is the compound for CoSO4

CoSO₄· 7H₂O 

Cobalt(II) sulfate is used in storage batteries and electroplating baths for cobalt. It also is used as a dryer for lithographic inks; in pigments for decorating porcelains; in ceramics, glazes, and enamels to protect from discoloring; and as an additive to soils.

How to use Cobalt Sulphate Heptahydrate in the pottery

Hydrated cobalt(II) sulfate is used in the preparation of pigments, as well as in the manufacture of other cobalt salts. Cobalt pigment is used in porcelains and glass.

Formula: CoSO₄ · 7H₂O

Molecular Weight: 281.103 g/mol
Form: red orthorhombic crystals
CAS Number: 10026-24-1
Density: 1.948 g/cm³
Synonyms: Cobaltous sulfate heptahydrate; Cobalt(2+) sulfate hydrate (1:1:7); cobalt sulfate 7-hydrate; Cobalt sulfate heptahydrate; Cobalt monosulfate heptahydrate; sulfuric acid cobalt (2+) salt heptahydrate