Bismuth hydroxide
Bismuth hydroxide
分子式Molecular formula ：Bi(OH)3
分子量Molecular weight ：260.02
性状 ：白色无定形粉末。比重4 962(15℃) ，415℃分解 。易溶于酸 ，不溶于水和碱溶液 ，易呈胶状物 ，热至100℃失去一分子水而成黄色的偏氢氧化铋 。
用途：通用试剂。用于铋盐的制造。芸香苷及栎精的吸收剂核糖核酸的水解，从受辐照的铀中分离钚 。
Description ：White amorphous powder，Its specific gravity is 4．962(15℃)，decomposes at 415℃，easily dissolves in acid ，not dissolve in water or aqueous alkali ，easily shows jelly，Losing a molecule of water becomes Partial bismuth hydroxide at 100 degrees Celsius.
Usage ：Common reagent．Apply for making bismuth salt Hydrolyze absorbent RNA for rutin and quercetin ，separate plutonium from uranium under irradiation
质量标准Quality standard ：企业标准Enterprise standard
检测项目Test | 检测标准Specification | |
干燥失重Loss on dry | ≤2．0％ | |
硝酸不溶物Insoluble in nitric acid | ≤50PPm | |
氯化物 Chloride | ≤50PPm | |
硫酸盐 Sulfate | ≤50PPm | |
硝酸盐 Nitrate | ≤50PPm | |
氧化铁 Fe2O3 | ≤0．01％ | |
铜(Cu) Copper | ≤10PPm | |
砷(As) Arsenic | ≤5PPm | |
银(Ag) Silver | ≤20PPm | |
铅(Pb) Lead | ≤10PPm | |
含量(Bi203)Content of Bi203 | ≥89．0％ |