Barium carbonate is used in chrome plating to control the sulphate level. Sulphate can easily be precipitated from chrome solutions by adding barium carbonate. The guideline in the literature is appxoximately two kg of barium carbonate to remove one kg of sulphate. An addition of 2.2 g/L of barium carbonate will precipitate about 1 g/L of sulphuric acid.
Barium Carbonate is a white dense powder used in brick and tile industry, ceramics, paints, enamels, glazes and plating treatment.
Barium Carbonate is widely used as a component of glazes in ceramics. It functions as a crystallizing, flux, and matting agent and combines with different oxide pigments to produce unique colours that are otherwise difficult to achieve.
In tile, brick, and pottery applications barium carbonate is added to clays to form soluble salts (magnesium sulfate and calcium sulfate) that produce efflorescence.
Barium Carbonate has also been used as a pesticide and rat poison.