Used as a contrast agent in medical imaging, particularly in X-ray and CT scans of the gastrointestinal tract. It helps outline the esophagus, stomach, and intestines, providing clear images to detect abnormalities such as tumors, ulcers, or blockages. Commonly added to drilling fluids in oil and gas exploration to increase fluid density, which helps control well pressure and prevent blowouts. Used in the production of paints, coatings, and plastics as a filler to improve density, brightness, and resistance to acids and alkalis. Employed in the manufacturing of paper as a coating pigment to enhance smoothness and print quality. Utilized in radiation shielding applications due to its high density and ability to absorb ionizing radiation, especially in construction materials for medical and nuclear facilities.