BISMUTH CARBONATE BISMUTHI SUBCARBONAS BISMUTH OXYCARBONATE
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Bismuth Subcarbonate
CAS: 5892-10-4
Standard: USP27
Content: 99%
Packing: 25kg/drum
Bismuth Subcarbonate, Bismuth carbonate
Molecular formula:(BiO)2CO3
Molecular weight:518.976
Specification:
Item |
Quality standard |
Result |
Assay |
97.6%~100.7% |
99.1% |
Loss on dry |
≤1.0% |
0.62% |
Alkalies |
≤1.0% |
0.61% |
Cl (%) |
≤0.05 |
Conforms |
Cu(ppm) |
≤50 |
Conforms |
As (ppm) |
≤5 |
Conforms |
Pb (ppm) |
20 |
Conforms |
Ag (ppm) |
≤25 |
Conforms |
Nitrate |
≤0.4% |
Conforms |
Description |
White powder |
|
Conclusion: the product is in conformity with the standard. |
Description: Bismuth subcarbonate is the the white powder,no smell or taste.Its relative density is 6.86,decomposes carbon dioxide bismuth oxide at the temperature 308°C.Gradually decomposes and degenerate under the light.Undissolved in water or ethanol,easily dissolves in inorganic acid(nitric acid,hydrochloric acid),acetic acid and ammonium chloride solution,slightly dissolves in alkali metal carbonate solution.
Usage: As astringent and X-ray diagnosis opacifier in medical industry,also can treat the gastric and duodenal ulcer,bacteria red dysentery,amoebic dysentery,acute mucosa permeable gastritis,enteritis,diarrhea,skin disease,eczema and crystal rash as well external remedy of fire wound.
Quality standard: USP27/CP2005
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