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(wú)味無(wú)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(wú)機酸（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：用于醫藥工業(yè)作收斂劑、X射線(xiàn)診斷遮光劑，可治療胃及十二指腸潰瘍、細菌性赤痢、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)量標準 Quality standard:USP27/中國藥典2005年版CP2005