Bismuth subcarbonate CAS 5892-10-4
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Introduction to Bismuth Subcarbonate CAS 5892-10-4:
Bismuth metacarbonate, also known as bismuth oxocarbonate or bismuth carbonate, is an inorganic compound that appears as a white or slightly pale yellow powder. It is odorless and tasteless. It gradually deteriorates upon exposure to light and decomposes into carbon dioxide and bismuth oxide when heated to 308°C. It is insoluble in water and ethanol but readily soluble in nitric acid, hydrochloric acid, and concentrated acetic acid. It is soluble in ammonium chloride solution and slightly soluble in alkali metal carbonate solutions.
Bismuth subcarbonate (USP)
Item | Specification | Typical Value |
Appearance | White Powder | Confirm |
Solubility | Almost insoluble in water and 96% ethanol | Confirm |
Identification | A. Carbonate | Pass |
B. Bismuth | Pass | |
Solution Appearance | Tested | Pass |
Chloride | ≤500ppm | ≤500ppm |
Nitrates | ≤0.4% | ≤0.4% |
Alkali and alkaline earth metals | ≤1.0% | 0.4% |
Arsenic | ≤5ppm | <1ppm |
Copper | ≤50ppm | <1ppm |
Lead | ≤20ppm | <1ppm |
Silver | ≤25ppm | <1ppm |
Loss on drying | ≤1.0% | 0.1% |
Bismuth content (dry basis) | 80.0-82.5% | 81.4% |
Bismuth subcarbonate (USP)
Item | Specification | Typical Value |
Appearance | White Powder | Confirm |
Identification | A. Carbonate | Pass |
B. Bismuth | Pass | |
Nitrates | ≤0.4% | ≤0.4% |
Loss on drying | ≤1.0% | 0.1% |
Chloride | ≤500ppm | ≤500ppm |
Arsenic | ≤5ppm | <1ppm |
Copper | ≤50ppm | <1ppm |
Lead | ≤20ppm | <1ppm |
Silver | ≤25ppm | <1ppm |
Alkali and alkaline earth metals | ≤1.0% | 0.4% |
Bismuth Subcarbonate Content (Dry Basis) | 97.6-100.7% | 99.3% |
Application:
Bismuth subcarbonate is primarily used to treat ulcers and other gastrointestinal diseases caused by Helicobacter pylori. The main targets of this compound are bacterial pathogens, including Helicobacter pylori, Escherichia coli, Salmonella, Campylobacter jejuni, and Clostridium difficile.
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Bismuth Subcarbonate
CAS 5892-10-4
Bismuth subcarbonate (USP)
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