CAS 7727-43-7 Barium Sulfate Sand for Painting and Coating Barium Sulphate BaSO4 Product Description Barium Sulfate (CAS 7727-43-7) Synonyms: Barite, Barytes, Blanc fixe, Barium sulphateMolecular formula: BaSO₄Molecular weight: 233.39 g/mol Description Barium sulfate is a white, odorless, crystalline or amorphous powder with high specific gravity and very low solubility in water, acids, and alkalis. It is chemically inert and non-flammable. It occurs naturally as the mineral