White powder, nonpoisonous, nearly insoluble in water, alcohol, and acid, excellent stability, moderate hardness, high luster, h Barium Sulphate ... Superfined Chemical formula: BaSO4Molecular Weight: 233.33Appearance: White powder, nonpoisonous, nearly insoluble in ... battery, rubber, glass, cosmetics, frictional materials, etc. Barium Sulphate Superfined