指标名称

规格

分析纯

化学纯

可根据客户制定标准定制

含量

≥99.5%

≥98.3%

澄清实验度

4号

6号

水不溶物

≤0.005%

≤0.02%

硫酸盐

≤0.01%

≤0.02%

硝酸盐

≤0.002%

≤0.005%

铵盐

≤0.002%

≤0.005%

磷酸盐

≤0.001%

≤0.003%

钠

≤0.03%

≤0.1%

镁

≤0.002%

≤0.005%

钾

≤0.03%

≤0.05%

钙

≤0.005%

≤0.02%

铁

≤0.001%

≤0.003%

钡

≤0.005%

≤0.01%

重金属

≤0.001%

≤0.005%