CoSO47H2O

CoSO47H2O refers to cobalt(II) sulfate heptahydrate. It is an inorganic chemical compound with the formula CoSO4·7H2O. This substance is a red crystalline solid. It is the most common form of cobalt sulfate encountered.

Cobalt(II) sulfate heptahydrate is soluble in water, forming a pink or red solution. It is also soluble in methanol and ethanol. The compound decomposes upon heating, losing water molecules to form lower hydrates and eventually anhydrous cobalt(II) sulfate. The heptahydrate form is relatively stable under normal conditions.

This compound finds various applications. It is used in the production of pigments, as a cobalt-containing additive in animal feed, and in electroplating. It can also be used as a precursor for other cobalt compounds. In some historical contexts, it was used as a drying agent in paints and varnishes.

Cobalt(II) sulfate heptahydrate should be handled with care, as cobalt compounds can be toxic and allergenic. It is typically stored in a cool, dry place away from incompatible materials. Exposure should be minimized, and appropriate personal protective equipment should be used when handling it.