What Is Barium Sulfate?
Barium sulfate, with a molecular weight of 233.39 and a chemical formula of BaSO4, is formed by reacting sulfuric acid with barium metal or its compounds. It appears as a white or transparent crystalline powder and is practically insoluble in water, ethanol, and diethyl ether, as well as hydrochloric and nitric acids.
Barium sulfate is non-flammable but decomposes at temperatures above 1600°C, releasing toxic sulfur oxide vapors. While generally safe for human use, some individuals may experience allergic reactions to it.
Uses of Barium Sulfate
This chemically stable compound finds widespread use in medical and industrial applications due to its excellent light and heat resistance. Industrially, it’s used in electronic materials, coatings, white plastics, acrylic resin, glass, and sometimes in cosmetics. In medical settings, barium sulfate is used as a contrast agent for X-ray imaging of the digestive tract.
Use in X-Ray Diagnosis (Double Contrast Method)
For X-ray diagnostics, a suspension of barium sulfate is prepared and used in conjunction with air or carbon dioxide gas to enhance contrast and visualize minute mucosal irregularities. Care is taken to maintain the concentration of the suspension and prevent rapid gastric expansion. Post-examination, prompt elimination of barium sulfate is essential, requiring adequate fluid intake, and in cases of persistent gastrointestinal symptoms, further examination and appropriate measures are necessary.