质量标准: Q/(HG)SJ 032-91
项目Item 分析纯 化学纯
(AR) (CP)
含量(NaI)Assay,% ≥99.5 99.0
水不溶物Insiluble matter in water,% ≤0.005 0.005
氯化物(Cl)Chloride,% ≤0.03 0.1
碘酸盐(IO3)Iodate,% ≤0.005 0.01
硫酸盐(SO4)Sulfate ,% ≤0.005 0.01
总氮量(N)Total nitrogen,% ≤0.001 0.005
镁(Mg)Magnesium,% ≤0.005 0.001
钙(Ca)Calcium,% ≤0.001 0.005
铁(Fe)Iron,% ≤0.0002 0.0005
钡(Ba)Barium,% ≤0.00005 0.0001
重金属(以Pb计)Heavy metals,% ≤0.0005 0.001
ACS级
项目名称 ACS Grade
含量Assay ≥99.5%
"pH(5%,25.0℃)"pH of a 5% solution at 25.0℃ 6.0-9.0
水不溶物Insoluble matter ≤0.01%
氯化物和溴化物(以Cl计)Chloride and bromide ≤0.01%
碘酸盐(IO3)Iodidi ≤0.0003%
磷酸盐(PO4)Phosphate ≤0.001%
硫酸盐(SO4)Sulfate ≤0.005%
钡(Ba)Barium ≤0.002%
重金属(以Pb计)Heavy metals ≤5ppm
铁(Fe)Iron ≤5ppm
钙(Ca)Calcium ≤0.002%
镁(Mg)Magnesium ≤0.001%
钾(K)Potassium ≤0.01%