質(zhì)量標(biāo)準(zhǔn):項(xiàng)目ltem 分析純 化學(xué)純
(AR) (CP)
含量(C4H5KO6),% ≥99.5 99.0
澄清度試驗(yàn)Clarity 合格 合格
鹽酸不溶物Insoluble matter in
hydrochloric acid,% ≤0.005 0.01
氯化物(Cl)Chloride,% ≤0.001 0.003
硫酸鹽(SO4)Sulfale,% ≤0.005 0.01
磷酸鹽(PO4)Phosphate,% ≤0.002 --
銨鹽(NH4)Ammonium,% ≤0.005 0.01
鈉(Na)Sodium,% ≤0.02 --
鐵(Fe)Iron,% ≤0.001 0.005
重金屬(以Pb計(jì))Heavy metals,% ≤0.001 0.005
ACS級(jí)
項(xiàng)目名稱 ACS Grade
含量(C4H5KO6)Assay 99.0-101.0%
氨水不溶物Insoluble matter in ammonium hydroxide ≤0.005%
氯化物(Cl)Chloride ≤0.005%
銨鹽(NH4)Ammonium ≤0.01%
硫酸鹽(SO4)Sulfate ≤0.01%
鈣(Ca)Calcium ≤0.05%
鈉(Na)Sodium ≤0.05%
重金屬(以Pb計(jì))Heavy metals ≤0.001%
鐵(Fe)Iron ≤0.002%