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% |