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- 棕黄色或棕色结晶,易潮解,一般具有盐酸气味,具酸性,遇光或热还原为亚铁
质量标准
项目Item分析纯 化学纯
(AR) (CP)
含量(FeCl3·6H2O)Assay,% ≥99.0 98.0
水不溶物Insoluble matter in water,%≤0.01 0.05
游离酸(以HCl计)Free acids,%≤0.10.1
硫酸盐(SO4)Sulfate,% ≤0.01 0.03
硝酸盐(NO3)Nitrate,% ≤0.01 0.03
磷酸盐(PO4)Phosphate,% ≤0.01 0.03
锰(Mn)Manganese,%≤0.02--
亚铁(Fe2+)Ferrous,%≤0.0020.005
铜(Cu)Copper,% ≤0.0050.01
锌(Zn)Zinc,% ≤0.0030.01
砷(As)Arsenic,%≤0.0020.01
氨水不沉淀物Substances not
precipitated by ammonia,%≤0.10.5
ACS级
项目名称Item ACS Grade
含量(FeCl3·6H2O)Assay 97.0-102.0%
水不溶物Insoluble matter in water≤0.01%
硝酸盐(NO3)Nitrate ≤0.01%
硫酸盐(SO4)Sulfate ≤0.01%
磷化合物(PO4计)Phosphorus compounds≤0.01%
钙(Ca)Calcium(Ca)≤0.01%
铜(Cu)Copper(Cu) ≤0.003%
镁(Mg)Magnesium(Mg)≤0.005%
钾(K)Potassium(K)≤0.005%
钠(Na)Sodium(Na) ≤0.05%
锌(Zn)Zinc(Zn) ≤0.003%
亚铁盐(Fe2+)Ferrous≤0.002%
贮存:密封避光阴凉处保存,在夏季应特别注意防止熔化
用途:分析试剂,测定砷、锂、锡、硒、钒、硫氰酸盐,铁氰酸盐和血清总胆固醇等,工业上用作照相制版,颜料和催化剂等,氧化剂。
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