Bismuth Subcarbonate
Bismuth Subcarbonate
分子式Molecular formula: (BiO)2CO3·1/2H2O
分子量Molecular weight:518.976
形狀：堿式碳酸鉍為無味無臭的白色粉末。相對密度6.86，在308℃分解成二氧化碳和氧化鉍。遇光慢慢分解變質(zhì)。不溶于水、乙醇，易溶于無機(jī)酸（硝酸、鹽酸）和濃醋酸。也溶于氯化銨溶液中，微溶于堿金屬碳酸鹽溶液。
用途：用于醫(yī)藥工業(yè)作收斂劑、X射線診斷遮光劑，可治療胃及十二指腸潰瘍、細(xì)菌性赤痢、阿米巴痢疾，急性粘膜滲透性胃炎、腸炎和腹瀉、皮膚病，濕疹，汗疹，火傷外用藥。
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.
質(zhì)量標(biāo)準(zhǔn) Quality standard:USP27/中國藥典2005年版CP2005
檢測項(xiàng)目Test | 檢測標(biāo)磚Specification | |
USP27 | 中國藥典2005版（CP2005） | |
干燥失重 Loss on dry | ≤1.0% | ≤1.5% |
氯化物Chloride | ≤0.05% | ≤0.14% |
硫酸鹽Sulfate | —— | ≤0.02% |
堿金屬和堿土金屬 Alikalies&Alkaline earth meatals | ≤1.0% | ≤0.5% |
硝酸鹽Nitrate | ≤0.4% | 按照標(biāo)準(zhǔn)Accord with require |
銅（Cu）Copper | ≤50ppm | ≤50ppm |
鉛（Pb）Lead | ≤20ppm | 按照標(biāo)準(zhǔn)Accord with require |
銀（Ag）Silver | ≤25ppm | 按照標(biāo)準(zhǔn)Accord with require |
砷（As）Arsenic | ≤5ppm | ≤2ppm |
碳酸根鑒別Carbonate | 按照標(biāo)準(zhǔn)Accord with require | 按照標(biāo)準(zhǔn)Accord with require |
金屬鉍鑒別Bi | 按照標(biāo)準(zhǔn)Accord with require | 按照標(biāo)準(zhǔn)Accord with require |
含量Content | 【以(BiO)2CO3計】97.6%-100.7% | 【以Bi計】80.0%-82.5% |