1.BaCO3 99.6% 2.Price competitive 3.Quality guaranteeing 4.Supplies creditable and reliable 5.Technology Support 1.General knowledge about Barium CarbonateBarium carbonate (BaCO3), also known as witherite, is a chemical compound used in rat poison, bricks, ceramic glazes and cement.Witherite crystallizes in the orthorhombic system. The crystals are invariably twinned together in groups of three, ...