Barium sulfate, represented by the chemical formula BaSO4, is a white crystalline solid that is commonly used in various industrial applications. It is insoluble in water and has a high density, making it useful as a contrast agent in medical imaging, particularly in X-ray examinations of the gastrointestinal tract. In addition to its medical uses, BaSO4 is also employed in the production of paints, plastics, and rubber, where it serves as a filler to improve texture and durability. Its non-toxic nature makes it a safe choice for many applications, contributing to its widespread use in different industries.