China barium carbonate manufacturersselect 2019 high quality barium carbonate products in best price from certified chinese activated carbon manufacturers, calcium carbonate suppliers, wholesalers and factory on made-in-china Barium carbonate (baco3), also known as witherite, is a chemical compound used in rat poison, bricks, ceramic glazes and cement.b... price: 150 inr (approx.) get latest price Barium carbonate is manufactured from natural barium sulfate (barite) by reduction with petcoke and following precipitation with carbon dioxide. technical service we offer chemical analysis of clays regarding content of sulfates and other impurities free of charge for our customers in the brick and tile industry. In brick, tile, pottery ware and earthenware manufacturing processes, barium carbonate is added to precipitate soluble salts such as calcium sulphate with would otherwise cause efflorescence. this is the loss of water of crystallization from a hydrated compound to the atmosphere.