碘化镉

碘化镉
质量标准
项目Item                                                 分析纯　　
化学纯                                     （AR）    （CP）
含量（CdI2）Assay,%                        ≥ 99.5      99.0
铁(Fe)Iron,%                                          ≤ 0.001     0.002
锌(Zn)Zinc,%                                          ≤ 0.005     0.02
铅(Pb)Lead,%                                        ≤ 0.002     0.005
硫化铵不沉淀物(以禁发 硫酸盐计)Substances not
precipitated by ammonium sulfide,%         ≤ 0.01      0.25
pH(50g/L溶液，25℃)                              5-6            5-6
澄清度试验Clarity                                    合格          合格
水不溶物Insoluble matter in water,%         ≤ 0.005     0.01
氯化物及溴化物Chloride and bromide,%       ≤ 0.01      0.01
禁发 硫酸盐(SO4)Sulfate,%                               ≤ 0.005         0.008