指标名称

规格

分析纯AR

化学纯CP

含量

≥99.0%

≥ 98.0%

澄清度实验

合格

 合格

水不溶物

≤0.005%

≤0.01%

氯化物

≤0.2%

≤ 0.5%

溴酸盐

≤0.001%

≤ 0.003%

碘化物

≤0.005%

≤ 0.01%

硫酸盐

≤0.002%

≤ 0.005%

氮化合物

≤0.001%

≤ 0.002%

钠

≤0.02%

≤ 0.05%

镁

≤ 0.0005%

≤ 0.002%

钙

≤ 0.002%

≤ 0.005%

铁

≤ 0.0002%

≤≤ 0.0005%

钡

≤ 0.002%

≤ 0.005%

重金属

≤ 0.0002%

≤ 0.0005%