... barium salt;2, used in making optical glasses, barium magnetic materials;3, used in making fireworks and signal flare;4, used in coatings of ceramics ... enamels, pigments, coatings, rubber, and welding rod;7, used in purifying agent and raticide;8, used in catalyst of oxidizing reaction. NAME OF INDEXQUALITY INDEX ... can establish business relationship with you. competitive price Barium Carbonate 99.8%