Language
Grade: Pharmaceutical Grade
Factory Location: ZHEJIANG PROVINCE, CHINA
Main Sales Markets: Central/South America,Asia,Middle East
Packaging Information: 25KG/DRUM
Sample Provided: yes
Payment Terms: TT IN ADVANCE
Bismuth Subcarbonate
Molecular formula: (BiO)2CO3·1/2H2O
Molecular weight:518.976
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℃.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.
质量标准 Quality standard:USP、CP
|
Test |
Specification |
|
|
USP |
CP |
|
|
Loss on dry |
≤1.0% |
≤1.5% |
|
Chloride |
≤0.05% |
≤0.14% |
|
Sulfate |
—— |
≤0.02% |
|
Alikalies&Alkaline earth meatals |
≤1.0% |
≤0.5% |
|
Nitrate |
≤0.4% |
Accord with require |
|
（Cu）Copper |
≤50ppm |
≤50ppm |
|
（Pb）Lead |
≤20ppm |
Accord with require |
|
（Ag）Silver |
≤25ppm |
Accord with require |
|
（As）Arsenic |
≤5ppm |
≤2ppm |
|
Carbonate |
Accord with require |
Accord with require |
|
Bi |
Accord with require |
Accord with require |
|
Content |
(BiO)2CO397.6%-100.7% |
Bi 80.0%-82.5% |