CAS Number: 7727-43-7
chemical formula BaSO4
White crystalline solid
Insoluble in water.
Barium sulfate is widely used as a radio-opaque agent or X-ray contrast agent to diagnose gastrointestinal medical conditions.
It is also used in oil well drilling fluids and concrete-based radiation shields.
It also has applications in root canal fillings, pigments, paints, adhesives, paper coatings, fillers in plastics, linoleum, brake linings, pyrotechnic compositions, textiles, rubber, and catalyst supports.