碘化鎘 
質(zhì)量標準
AR

項目Item                                                 分析純  化學純
                                                                （AR）    （CP）
含量（CdI2）Assay,%                        ≥ 99.5      99.0
鐵(Fe)Iron,%                                          ≤ 0.001     0.002
鋅(Zn)Zinc,%                                          ≤ 0.005     0.02
鉛(Pb)Lead,%                                        ≤ 0.002     0.005
硫化銨不沉淀物(以硫酸鹽計)Substances not
precipitated by ammonium sulfide,%         ≤ 0.01      0.25
pH(50g/L溶液，25℃)                              5-6            5-6
澄清度試驗Clarity                      &n