GB/T 1265-77 项目Item 分析纯 化学纯 (AR) (CP) 含量(NaBr)Assay,% ≥99.0 98.0 水溶液反应Water solution reaction 合格 合格 澄清度试验Clarty 合格 合格 水不溶物Insiluble matter in water,% 溴化钠,7647-15-6,Sodium bromide ≤0.005 0.02 氯化物(Cl)Chloride,% ≤0.2 0.5 溴酸盐(BrO3)Bromate,% ≤0.001 0.003 碘化物(I)Iodide,% ≤0.02 0.05 硫酸盐(SO4)Sulfate ,% ≤0.002 0.005 氮化合物(N)Nitrogen Compounds ,% ≤0.001 0.002 镁(Mg)Magnesium,% ≤0.0005 0.002 钙(Ca)Calcium,% ≤0.002 0.005 铁(Fe)Iron,% ≤0.0002 0.0005 钡(Ba)Barium,% ≤0.002 0.005 重金属(以Pb计)Heavy metals,% ≤0.0002 0.0005 ACS级 项目名称 ACS Grade 含量(校正)Assay(corrected) ≥99.0% pH(5%溶液,25.0℃)pH of a 5% solution at 25.0℃ 5.0-8.8 水不溶物Insoluble matter ≤0.005% 溴酸盐(BrO3)Bromate ≤0.001% 氯化物(Cl)Chloride ≤0.2% 硫酸盐(SO4)Sulfate ≤0.002% 钡(Ba)Barium ≤0.002% 重金属(以Pb计)Heavy metals ≤5ppm 铁(Fe)Iron ≤5ppm 钙(Ca)Calcium ≤0.002% 镁(Mg)Magnesium ≤0.001% 钾(K)Potassium ≤0.1% 99.99%: Appearance 白色粉末 ICP: Confirms Sodium Component Purity ≥99.99% Based On Trace Metals Analysis (% Br) ≥75.7 % (Titration by AgNO3) 总痕量金属Trace Metal Analysis ≤200.0 ppm(By ICP-Atomic emission) (K、Ni、Cs、Cu、Y、Si、Mo、Pb、As、Sb、Se) |