... 1. highest purity, lowest content of heavy metal 2. Factory direct sale+ competitive price+prompt delivery Other Names ... Barium Carbonate EINECS No. 200-543-5 Purity 99.2% Place of Origin Hunan, China (Mainland) Barium Carbonate ... 1, desulfurization in the production of pentasodium phosphate. 2, used to handle sewage containing chrome3, used to ... WITH SUPREME QUALITY! Barium carbonate precipitated 99.2%