指標(biāo)名稱

規(guī)格

優(yōu)級純GR

分析純AR

化學(xué)純CP

含量

≥99.5%

≥99.5%

≥99.0%

PH

-

5.0~7.0

5.0~7.0

澄清度實驗

合格

合格

合格

水不溶物

≤0.005%

≤0.01%

≤0.02%

總氮量

≤0.001%

≤0.002%

≤0.005%

鈉

≤0.005%

≤0.01%

≤0.02%

鉀

≤0.005%

≤0.005%

≤0.01%

鈣

≤0.01%

≤0.05%

≤0.1%

鐵

≤0.00005%

    ≤0.0001%

  ≤0.0002%

鍶

≤0.05%

≤0.05%

≤0.1%

重金屬

≤0.0002%

≤0.0005%

≤0.001%