易溶于热水。溶于冷水、乙醇、盐酸。微溶于丙酮、乙醚。四水合物为白色针状结晶。极易溶于热水,溶于冷水、丙酮、乙醇。微溶于乙醚。干燥空气中易风化。 久置或见光渐变黄色。有毒。有致癌可能性。四水合物加热至37℃时失去3分子结晶水转变为一水化合物
Q/(HG)SJ 132-91
项目Item 分析纯 化学纯
(AR) (CP)
含量(CdBr2·4H2O)Assay,% 99.0~101.0 99.0~101.5
水不溶物Insoluble,% ≤ 0.005 0.01
游离酸Free acids 合格 合格
氯化物(Cl)Chloride,% ≤ 0.2 0.4
硫酸盐(SO4)Sulfate,% ≤ 0.005 0.01
铵盐(NH4)Ammonium salt,% ≤ 0.005 0.005
铝(Al)Aluminum,% ≤ 0.05 0.1
铁(Fe)Iron,% ≤ 0.001 0.002
铜(Cu))Copper,% ≤ 0.002 0.002
锌(Zn)Zinc,% ≤ 0.01 0.02
铅(Pb)Lead,% ≤ 0.005 0.005
硫化铵不沉淀物Substances not preci-
pitated by ammonium sulfide,% ≤ 0.2 0.4
99.99% metals basis:
外观Appearance White Powder or Crystal or Chunk(s)
X-射线衍射X-Ray Diffraction Conforms to Structure
纯度Purity ≥99.99% Based on Trace Metals Impurities
镉Cd(Complexometric EDTA) 31.8 - 33.5 %
ICP Major Analysis Confirms Cadmium component
总痕量金属杂质total metallic impurities ≤200ppm by ICP Atomic emission
危险品标志 Xn,N
危险类别码 20/21/22-50/53
安全说明 60-61