... CarbonateBarium carbonate (BaCO3), also known as witherite, is a chemical compound used in rat poison, bricks, ceramic glazes and cement.Witherite ... tube),and also take a leading role in producing magnetic materials,various barium salts,and chemical reagent,etc.The standard and ... : BaCO3 99.6% industry barium carbonate granular for glass,constuction materials,etc