质量标准
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