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HG/T 3-957-84 项目Item 优级纯 分析纯 化学纯 (GR) (AR) (CP) 含量[Ni(NO3)2·6H2O]Assay,% ≥99.0 98.0 98.0 水不溶物Insoluble matter in water,% ≤0.005 0.005 0.01 氯化物(Cl)Chloride,% ≤0.001 0.001 0.005 硫酸盐(SO4)Sulfate,% ≤0.005 0.005 0.01 铵盐(NH4)Ammonium,% ≤0.05 -- -- 钠(Na)Sodium,% ≤0.005 0.01 0.02 镁(Mg)Magnesium,% ≤0.005 0.01 0.02 钾(K)Potassium,% ≤0.005 0.005 0.01 钙(Ca)Calcium,% ≤0.005 0.01 0.02 铁(Fe)Iron,% ≤0.0005 0.0005 0.001 钴(Co)Cobalt,% ≤0.005 0.01 0.05 铜(Cu)Copper,% ≤0.0005 0.001 0.005 锌(Zn)Zinc,% ≤0.001 0.005 0.02 镉(Cd)Cadmium,% ≤0.001 -- -- 铅(Pb)Lead,% ≤0.0005 0.001 0.005
ACS级 项目名称Item ACS Grade 含量Assay ≥98.0-102.0% 水不溶物Insoluble matter ≤0.005% 氯化物(Cl)Chloride(Cl) ≤0.002% 硫酸盐(SO4)Sulfate ≤0.002% 钙(Ca)Calcium(Ca) ≤0.01% 钴(Co)Cobalt(Co) ≤0.1% 铜(Cu)Copper(Cu) ≤5ppm 铁(Fe)Iron(Fe) ≤0.001% 铅(Pb)Lead(Pb) ≤0.005% 镁(Mg)Magnesium(Mg) ≤0.01% 锰(Mn)Manganese(Mn) ≤0.002% 钾(K)Potassium(K) ≤0.01% 钠(Na)Sodium(Na) ≤0.05% 锌(Zn)Zinc(Zn) ≤0.01%
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