Bismuth Subcarbonate
Bismuth Subcarbonate
分子式Molecular formula: (BiO)2CO3·1/2H2O
分子量Molecular weight:518.976
形状 ：碱式碳酸铋为无味无臭的白色粉末 。相对密度6.86，在308℃分解成二氧化碳和氧化铋 。遇光慢慢分解变质 。不溶于水 、乙醇，易溶于无机酸（硝酸 、盐酸）和浓醋酸。也溶于氯化铵溶液中，微溶于碱金属碳酸盐溶液 。
用途 ：用于医药工业作收敛剂 、X射线诊断遮光剂 ，可治疗胃及十二指肠溃疡、细菌性赤痢、阿米巴痢疾 ，急性粘膜渗透性胃炎 、肠炎和腹泻 、皮肤病 ，湿疹 ，汗疹 ，火伤外用药 。
Description:Bismuthsubcarbonate is the the white powder,no smell or taste.Its relativedensity is 6.86,decomposes carbon dioxide bismuth oxide at thetemperature 308℃.Graduallydecomposes and degenerate under the light.Undissolved in water orethanol,easily dissolves in inorganic acid(nitric acid,hydrochloricacid),acetic acid and ammonium chloride solution,slightly dissolves inalkali metal carbonate solution.
Usage:Asastringent and X-ray diagnosis opacifier in medical industry,also cantreat the gastric and duodenal ulcer,bacteria red dysentery,amoebicdysentery,acute mucosa permeable gastritis,enteritis,diarrhea,skindisease,eczema and crystal rash as well external remedy of fire wound.
质量标准 Quality standard:USP27/中国药典2005年版CP2005
检测项目Test | 检测标砖Specification | |
USP27 | 中国药典2005版（CP2005） | |
干燥失重 Loss on dry | ≤1.0% | ≤1.5% |
氯化物Chloride | ≤0.05% | ≤0.14% |
硫酸盐Sulfate | —— | ≤0.02% |
碱金属和碱土金属 Alikalies&Alkaline earth meatals | ≤1.0% | ≤0.5% |
硝酸盐Nitrate | ≤0.4% | 按照标准Accord with require |
铜（Cu）Copper | ≤50ppm | ≤50ppm |
铅（Pb）Lead | ≤20ppm | 按照标准Accord with require |
银（Ag）Silver | ≤25ppm | 按照标准Accord with require |
砷（As）Arsenic | ≤5ppm | ≤2ppm |
碳酸根鉴别Carbonate | 按照标准Accord with require | 按照标准Accord with require |
金属铋鉴别Bi | 按照标准Accord with require | 按照标准Accord with require |
含量Content | 【以(BiO)2CO3计】97.6%-100.7% | 【以Bi计】80.0%-82.5% |