指標(biāo)名稱

規(guī)格

分析純AR

化學(xué)純CP

電子級(jí)

含量

≥99.5%

≥99.0%

≥97.0%

澄清度實(shí)驗(yàn)

合格

合格

-

水不溶物

≤0.005%

≤0.01%

-

PH

7.0~9.0

7.0~9.0

-

氯化物

≤0.002%

≤0.005%

-

磷酸鹽

≤0.002%

≤0.005%

-

硫酸鹽

≤0.002%

≤0.005%

-

鈣

≤0.005%

≤0.005%

≤4ppm

鐵

≤0.0005%

≤0.001%

≤4ppm

鎂

≤0.0005%

≤0.001%

≤1ppm

鈉

≤0.02%

≤0.10%

≤300ppm

重金屬

≤0.0005%

≤0.001% 

-

還原高錳酸鉀物質(zhì)

合格

合格

-

銀

-

-

≤1ppm

鋁

-

-

≤1ppm

鋇

-

-

≤80ppm

鎘

-

-

≤1ppm

鈷

-

-

≤1ppm

鉻

-

-

≤1ppm

銅

-

-

≤1ppm

鋰

-

-

≤1ppm

錳

-

-

≤1ppm

鎳

-

-

≤1ppm

鉛

-

-

≤1ppm

錫

-

-

≤4ppm

鍶

-

-

≤1ppm

鋅

-

-

≤1ppm