碘化镉
质量标准
AR
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 &n