指標(biāo)名稱

規(guī)格

分析純AR

化學(xué)純CP

含量

≥99.0%

≥ 98.0%

澄清度實(shí)驗(yàn)

合格

 合格

水不溶物

≤0.005%

≤0.01%

氯化物

≤0.2%

≤ 0.5%

溴酸鹽

≤0.001%

≤ 0.003%

碘化物

≤0.005%

≤ 0.01%

硫酸鹽

≤0.002%

≤ 0.005%

氮化合物

≤0.001%

≤ 0.002%

鈉

≤0.02%

≤ 0.05%

鎂

≤ 0.0005%

≤ 0.002%

鈣

≤ 0.002%

≤ 0.005%

鐵

≤ 0.0002%

≤≤ 0.0005%

鋇

≤ 0.002%

≤ 0.005%

重金屬

≤ 0.0002%

≤ 0.0005%