Barium Carbonate: 1. CAS NO.: 513-77-9 2. Formula: BaCO3 3. Hazard: Class 6.1, UN NO.: 1564 4. HS: 2836600000 The main use of the product, Barium Carbonate:1, desulfurization in the production of pentasodium phosphate. 2, used to handle sewage containing chrome3, used to produce glass products4, used to produce radioceramic. 5, used to produce carburizer. 6, used as flux . 7, used as water ...