... carbonate high purity (99.8% min.) is maily used in the industry of electronic components, such as capacitor, PTC, MLCC. Barium Carbonate (High Purity) ... Chemical formula: BaCO3Molecular weight: 197.35 Appearance: White powder, Soluble in acid,Insoluble in water,poisonous Typical Analysis: Purity 99. ... ceramics, Electronic components, optical glass, LCD, etc. Barium Carbonate High Purity