Cobalt sulfate Molecular Formula: CoSO4 . 7H2O Molecular Weight: 281.10 Facies: pink ... purity:20% 20.5% 21% 24% 98. Product name: cobalt sulfate Appearance: brown or red crystals, density 1.948g/cm3, melting ... ethanol, at 420 out of the crystallization of water into anhydrous material. Uses: the coatings industry for paint driers, ceramic ... %: 0.002 max Packaging: 25 kg bags or barrels. Cobalt sulfate