分子量Molecular weight:412.13
结构式Strutturaf formula:

形 状:本品为亮黄色粉末,无臭无味,几乎不溶于水、醇、醚和氯仿,而溶于稀碱液中。
用 途:收敛和防腐药,外用于湿疹等皮肤病。
Descriptio,: Brilliant yellow powder,no smell or taste,almost not dissolve in water,alcohol ether and chloroform but dissolve in weak lye
Usage:For astringent and antiseptic,as well skin disease like eczema etc.
质量标准Quality standard:USP标准
检测项目Test  | 检测标准Specification  | 
干燥失重Loss on dry  | ≤7.O%  | 
硝酸盐 Nitrate  | 按照标准Accord with require  | 
砷(As) Arsenic  | ≤7.5ppm  | 
碱金属和碱土金属Alkalies&Alkalin earth metals  | ≤0.5%  | 
铜(Cu) Copper  | 按照标准Accord with require  | 
银(Ag) Silver  | 按照标准Accord with require  | 
铅(Pb)Lead  | 按照标准Accord with require  | 
游离没食子酸 Free gallic acid  | ≤O.5%  | 
含量(以Bi203计)Content of Bi203  | 52%一57%  |