指标名称

规格

分析纯AR

化学纯CP

电子级

含量

≥99.5%

≥99.0%

≥97.0%

澄清度实验

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%

-

磷酸盐

≤0.002%

≤0.005%

-

硫酸盐

≤0.002%

≤0.005%

-

钙

≤0.005%

≤0.005%

≤4000ppb

铁

≤0.0005%

≤0.001%

≤4000ppb

镁

≤0.0005%

≤0.001%

≤1000ppb

钠

≤0.02%

≤0.10%

≤1，500，000ppb

重金属

≤0.0005%

≤0.001% 

-

还原高锰酸钾物质

合格

合格

-

银

-

-

≤1000ppb

铝

-

-

≤1000ppb

钡

-

-

≤80000ppb

镉

-

-

≤1000ppd

钴

-

-

≤1000ppb

铬

-

-

≤1000ppb

铜

-

-

≤1000ppb

锂

-

-

≤1000ppb

锰

-

-

≤1000ppb

镍

-

-

≤1000ppb

铅

-

-

≤1000ppb

锡

-

-

≤4000ppb

锶

-

-

≤1000ppb

锌

-

-

≤1000ppb