Barium Carbonate Calcined GranularChemical formula: BaCO3 Molecular weight: 197.35 Appearance: White granular, Soluble in acid,Insoluble in water, Poisonous Typical Analysis: Purity 99.00% min. Moisture 0.30% max. Total Sulphur as SO4 0.30% max. Fe0.005% max. Igoss (600ºC 1H) 0.20% max. Particle Size +1000µm 0.2% max. +850µm 1.0% max. -105µm 15.0% max.