Barium sulfate is a chemical compound with the formula BaSO4. It is a white, odorless powder that is insoluble in water. Barium sulfate is commonly used in various industries, including the medical field, where it serves as a contrast agent in X-ray imaging and CT scans to enhance the visibility of internal organs. In addition to its medical applications, barium sulfate is also utilized in the manufacturing of paints, plastics, and rubber. Its high density and brightness make it an effective filler and pigment. Overall, barium sulfate plays a significant role in both healthcare and industrial processes.