质量标准
项目Item 分析纯 (AR) 主含量(NH4Br)Assay,% ≥99.0%干燥失重Drying loss,% : ≤0.20%澄清度试验Clarity 合格水不溶物Insoluble matter in water,% : ≤50PPM灼烧残渣(以硫酸盐计)Ignition residue,% ≤ 0.03PH(5%): 6.0-7.5溴酸盐 (BrO3)Bromate,% : ≤9PPM氯化物(Cl)Chloride,% : ≤0.15%硫酸(SO4Sulfate,%: ≤40PPM碘(I)Iodide,% : ≤50PPM重金属(以Pb计)Heavy metals,% : ≤0.2PPM砷 : ≤0.2PPM铜 : ≤0.2PPM铁(Fe)Iron,% : ≤0.2PPM 项目名称Item ACS 级含量(NH4Br)Assay ≥99.0%pH(5%溶液,25.0℃)pH 4.5-6.0水不溶物Insoluble matter ≤0.005%灼烧残渣Residue after ignition ≤0.01%溴酸盐(BrO3)Bromate ≤0.002%氯化物(Cl)Chloride(Cl) ≤0.2%碘化物(I)Iodide(I) ≤Passes test硫酸盐(SO4)Sulfate ≤0.005%钡(Ba)Barium(Ba) ≤0.002%重金属(以Pb计)Heavy metals(as Pb) ≤5ppm铁(Fe)Iron(Fe) ≤5ppm 99.99% metals basis: 外观Appearance 粉末或结晶不溶物insolubles ≤0.005%总金属杂质total metallic impurities <100 ppm灼烧残渣Residue on ignition ≤0.01%pH range 4.5 - 6.0anion traces 溴酸盐bromate (BrO3-): ≤0.002%氯chloride (Cl-): ≤0.2%碘iodide (I-): ≤0.005%硫酸根sulfate (SO42-): ≤0.005%纯度Purity ≥99.99% Based On Trace Metals Analysis钡Ba: ≤0.002%铁Fe: ≤5 ppm重金属heavy metals: ≤5 ppm 99.999%metals basis: 外观Appearance 白色粉末X-射线衍射X-Ray Diffraction Conforms to Structure纯度Purity ≥99.999% Based On Trace Metals Analysis总金属杂质Total Metallic Impurities 20ppm by ICP Atomic emission
危险性质
类别 有毒物品
毒性分级 中毒
急性毒性 口服-大鼠 LD50: 2700 毫克/公斤; 口服-小鼠LD50: 2860 毫克/公斤
可燃性危险特性 高温产生有毒氮氧化物和溴化物烟雾
储运特性 库房通风低温干燥; 与BRF3, IF4和K 分开存放
灭火剂 干粉、泡沫、砂土、二氧化碳, 雾状水