質(zhì)量標準: HG/T 3-1465-82
項目Item 分析純 化學純
(AR) (CP)
含量(C6H4O7N2)Assay,% ≥99.0 98.0
澄清度試驗Clarity 合格 合格
水不溶物Insoluble matter in water,% ≤0.005 0.01
灼燒殘渣(以硫酸鹽計)Ignition residue,% ≤0.03 0.06
氯化物(Cl)Chloride,% ≤0.001 0.002
硫化合物(以SO4計)Sulfur compounds,% ≤0.005 0.01
磷化合物(以PO4計)Phosphours compounds,% ≤0.002 0.005
草酸鹽(C2O4)Oxalate 合格 --
鈣(Ca)Calcium,% ≤0.005 0.02
鐵(Fe)Iron,% ≤0.0005 0.002
重金屬(以Pb計)Heavy metals,% ≤0.0005 0.001
項目名稱Item ACS Grade
含量[((NH4)2HC6H5O7)]Assay 98.0-103.0%
水不溶物Insoluble matter ≤0.005%
灼燒殘渣Residue after ignition ≤0.005%
氯化物(Cl)Chloride(Cl) ≤0.0001%
重金屬(以Pb計)Heavy metals(as Pb) ≤0.00005%
鐵(Fe)Iron(Fe) ≤0.00002%
草酸鹽(C2O4)Oxalate Passes test
磷酸鹽(PO4)Phosphate ≤5ppm
硫化合物(以SO4計)Sulfur compounds ≤0.005%