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Q/(HG)SJ 730-1977 项目Item 分析纯 化学纯 (AR) (CP) 含量(C4H6MgO4•4H2O)Assay,% ≥99.0 97.0 澄清度试验Clarity 合格 合格 水不溶物Insoluble matter,% ≤0.005 0.01 氯化物(Cl)Chloride,% ≤0.005 0.003 硫酸盐(SO4)Sulfate,% ≤0.005 0.01 磷酸盐(PO4)Phosphate,% ≤0.001 0.002 钙(Ca)Calcium,% ≤0.01 0.04 锰(Mn)Manganese,% ≤0.001 0.005 铁(Fe)Iron,% ≤0.0002 0.001 钡(Ba)Barium,% ≤0.003 0.05 重金属(以Pb计)Heavy metals,% ≤0.0005 0.002
ACS级 项目名称Item ACS Grade 含量 [(CH3COO)2Mg·4H2O]Assay 98.0-102.0% 水不溶物Insoluble matter ≤0.005% 硫酸盐(SO4)Sulfate ≤0.005% 钡(Ba)Barium(Ba) ≤0.001% 氯化物(Cl)Chloride(Cl) ≤0.001% 铁(Fe)Iron(Fe) ≤5ppm 钙(Ca)Calcium(Ca) ≤0.01% 锰(Mn)Manganese(Mn) ≤0.001% 钾(K)Potassium(K) ≤0.005%
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