... -resolution TV sets and optical class. Low-Sulfur Barium Carbonate :Spec,: Barium Carbonate(BaCO3), ≥ 99.00%Water Content, ≤ 0.20%HCl Insoluble Matters ... . At the high temperature(1400),it will be decomposed into barium oxide and carbon dioxide.Uses: It can be used to ... optical class. Besides, it is the raw material for other barium salts, ceramic, pigment and welding rods. Packing: Packed in 25kg ...