Barium sulfate CAS 7727-43-7, this product is X-ray double contrast agent. It is a high-density gastrointestinal contrast agent, which can be made into suspensions of different proportions for separate use, but is usually used together with low-density gas to achieve the purpose of double contrast. It is commonly used for gastrointestinal radiography. According to domestic users, the thick and thin uneven barium sulfate is superior to the thin and uniform barium sulfate. It should be used cautiously for the formation of intestinal fistula and some intestinal diseases prone to perforation, such as appendicitis, diverticulum, ulcerative enteritis, parasitic infection, etc.
Physicochemical properties
Character: odorless and tasteless powder. Soluble in hot concentrated sulfuric acid, almost insoluble in water, dilute acid and alcohol. The aqueous suspension solution is neutral to litmus test paper.
Density: 4.25-4.5
Melting point: 1580 ℃ [8]
Boiling point: 330 ℃ (760mmHg pressure) [8]
Decomposition temperature:>1600 ℃
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