Cobaltous Sulfate is a reddish, toxic, metallic salt. Cobalt sulfate is used in the electrochemical industries, as a drier in paints and inks, as a coloring agent, in storage batteries and as a supplement for deficiency. Exposure to cobalt sulfate results in irritation of the skin, eyes and respiratory tract and affects the thyroid, lungs, heart and kidneys. Cobalt sulfate is mutagenic in mammalian cells and is reasonably anticipated to be a human carcinogen based on evidence of carcinogenicity in experimental animals. Cobalt pigment is used in porcelains and glass. Cobalt(II) sulfate is used in storage batteries and electroplating baths, sympathetic inks, and as an additive to soils and animal feeds. For these purposes, the cobalt sulfate is produced by treating cobaltoxide with sulfuric acid.