溴化钠SodiumBromide
分子式:NaBr 分子量:102.89
用 途:医药上用作利尿剂、镇静剂,有加强大脑皮层抑制过程的作用。在合成香料、医药和染料等工业上作为溴化剂,也用作化学试剂和感光工业。
性 质:无色立方晶体或白色颗粒性粉末,属等轴晶系,无嗅、味咸而稍苦。在空气中易吸收水分而结块,但不潮解。比重3.203(25℃),熔点747℃、沸点1390℃,易溶于水、微溶于醇,其水溶液呈中性,有导电性。
CAS#: 7647-15-6 HS编码:2827510000 退税:0%
产品规格 | 医药级 | 照相级 |
执行标准 | YINGKEStandard | YINGKEStandard |
含量 % | ≥99.0 | ≥99.5 |
氯化物(Cl) % | ≤0.2 | ≤0.1 |
重金属(Pb) % | ≤0.001 | ≤0.0003 |
水不溶物 % | ≤0.005 | ≤0.0002 |
溴酸盐(BrO3) % | ≤0.001 | |
碘化物(I) % | ≤0.02 | ≤0.01 |
硫酸盐(SO4) % | ≤0.002 | ≤0.005 |
氮化合物(N) % | ≤0.0005 | |
镁(Mg) % | ≤0.0005 | |
钙(Ca) % | ||
铁(Fe) % | ≤0.0002 | |
钡(Ba) % | ≤0.001 | |
汞 % | ≤0.002 | |
游离碱(NaOH) % | ≤0.01 | |
游离酸(HCl) % | ||
PH值 | 6.0-8.0 | 6.0-8.0 |
澄清度试验 | 合 格 | 合 格 |
中控检验 | ||
外观鉴定 | 无色立方晶体或白色粉末 | 无色立方晶体或白色粉末 |
干燥失重(105℃/2H) % | ≤0.1 | ≤0.1 |
白度(70-90um粒度) % | 90 | 95 |
透过率15% | 99 | 99 |
粒度(U.S.SCREEN) 目 | 90%通过20-110目 | 90%通过20-110目 |
保质期 年 | 二年 | 二年 |
Molecular formula:NaBr Molecularweight:102.8938
Application:It is used as adiuretic or sedative in medicine and has a role in strengtheningthe inhibition process of the cerebral cortex. It is used as abrominating agent in industries such as synthetic fragrances,pharmaceuticals and dyes, and also as a chemical reagent andphotographic industry.
Property:Colorless cubic crystal or white granularpowder, belonging to the equiaxed crystal system, odorless, saltyand slightly bitter. It absorbs moisture in the air andagglomerates, but it does not deliquesce. The specific gravity is3.203 (25 ℃), the melting point is 747℃, the boiling point is 1390℃, soluble in water, slightlysoluble in alcohol, and its aqueous solution is neutral andconductive.
CAS #: 7647-15-6