| |
HG/T 3-985-76
項(xiàng)目Item 分析純 化學(xué)純
(AR) (CP)
含量(C10H16N2O8)Assay,% ≥ 99.5 98.5
氯化物(Cl)Chloride,% ≤ 0.05 0.1
***鹽(SO4)Sulfate,% ≤ 0.05 0.1
灼燒殘?jiān)ㄒ?**鹽計(jì)）Ignition residue,% ≤ 0.1 0.3
碳酸鈉溶液溶解試驗(yàn)Solubility(in sodium carbonate solution) 合格 合格
鐵（Fe)Iron,% ≤ 0.001 0.001
重金屬(以Pb計(jì))Heavy metals,% ≤ 0.001 0.001
ACS級(jí)
項(xiàng)目名稱Item ACS Grade
含量(C10H16N2O8)Assay 99.4-100.6%
氨水不溶物Insoluble in dilute ammonium hydroxide ≤0.005%
灼燒殘?jiān)黂esidue after ignition ≤0.2%
氨基三乙酸[(HOCOCH2)3N]Nitrilotriacetic acid ≤0.1%
鈣(Ca)Calcium(Ca) ≤0.001%
鎂(Mg)Magnesium(Mg) ≤5ppm
重金屬(以Pb計(jì))Heavy metals(as Pb) ≤0.001%
鐵(Fe)Iron(Fe) ≤0.005%
|
