指标名称

规格

优级纯GR

分析纯AR

化学纯CP

含量

≥99.5%

≥99.5%

≥99.0%

水不溶物

≤0.002%

≤0.003%

≤0.005%

氯化物

≤0.0005%

≤0.001%

≤0.004%

硫酸盐

≤0.005%

≤0.015%

≤0.05%

钙

≤0.002%

≤0.004%

≤0.01%

钾

≤0.1%

-

-

钠

≤0.004%

-

-

氨水沉淀物

≤0.002%

-

-