质量标准: Q/(HG)SJ 638-88
项目Item 分析纯 化学纯
(AR) (CP)
含量(SnCl2·2H2O)Assay,% ≥ 98.0 97.0
澄清度试验Clarity 合格 合格
盐酸不溶物Insoluble matter in hydrochloric acid,% ≤ 0.005 0.01
硫酸盐(SO4)Sulfate,% ≤ 0.003 0.01
铁(Fe)Iron,% ≤ 0.003 0.01
铜(Cu)Copper,% ≤ 0.002 0.005
砷(As)Arsenic,% ≤ 0.0001 0.0002
铅(Pb)Lead,% ≤ 0.005 0.02
碱金属及碱土金属(以硫酸盐计)Alkali and alkali erath metals,% ≤ 0.02 0.1
ACS级
项目名称Item ACS Grade
含量(SnCl2·2H2O)Assay 98.0-103.0%
盐酸中的溶解性Solubility in hrdrochloric acid Passes test
硫酸盐(SO4)Sulfate passes test
钙(Ca)Calcium(Ca) ≤0.005%
铁(Fe)Iron(Fe) ≤0.003%
铅(Pb)Lead(Pb) ≤0.01%
钾(K)Potassium(K) ≤0.005%
钠(Na)Sodium(Na) ≤0.01%