指标名称

规格

规格

分析纯AR

优级纯

含量

≥ 98.5%

≥ 99%

 水不溶物

≤ 0.01%

≤ 0.05%

 氯化物

 ≤ 0.001%

 ≤ 0.001%

 硝酸盐

≤  0.003%

≤  0.003%

钠

≤     0.02%

≤     0.01%

镁

≤     0.02%

≤     0.001%

钾

≤  0.005%

≤  0.002%

钙

≤  0.005%

≤  0.002%

锰

≤  0.0005%

≤  0.0002%

 铅

≤  0.001%

≤  0.0005%

铁

≤  0.001%

≤  0.0005%

 钴

≤  0.001%

≤  0.0005%

 锌

≤  0.001%

≤  0.0005%

铜

≤  0.001%

≤  0.0005%