指标名称

规格

指定级

工作基准

第一基准

优级纯

分析纯

化学纯

电池级

根据客户要求制作

含量

≥99.95-100.05%

≥99.98-100-02%

≥99.8%

≥99.8%

≥99.8%

≥99.5%

澄清度实验

2号

合格

合格

合格

合格

-

水不溶物

≤0.005%

≤0.005

≤0.01%

≤0.02%

-

氯化物

≤0.001%

≤0.001%

≤0.001%

≤0.002%

≤0.005%

≤0.005%

灼烧失重

-

-

≤0.5%

≤1.0%

≤1.0%

-

硫化合物

≤0.003%

≤0.003%

≤0.003%

≤0.005%

     ≤0.01%   

-

氮化合物

-

-

≤0.001%

≤0.001%

≤0.002%

-

磷酸盐和硅酸盐

≤0.0025%

≤0.0025%

≤0.0025%

≤0.006%

≤0.013%

-

总氮量

-

-

≤0.001%

 ≤0.001%

≤0.002%

-

镁

≤0.0005%

≤0.0005%

≤0.0005%

≤0.002%

≤0.005%

≤0.002%

铝

≤0.001%

≤0.001%

≤0.001%

≤0.003%

≤0.01%

≤0.002%

铅

-

-

-

-

-

≤0.0003%

硼

-

-

-

-

-

≤0.002%

铬

-

-

-

-

-

≤0.0003%

镍

-

-

-

-

-

≤0.002%

钾

≤0.0005%

≤0.005%

≤0.005%

≤0.005%

≤0.02%

≤0.005%

钙

≤0.01%

≤0.005%

≤0.005%

≤0.01%

≤0.02%

≤0.005%

铁

≤0.0003%

≤0.0003%

≤0.0003%

≤0.0005%

≤0.001%

≤0.001%

硫酸根

-

-

-

-

-

≤0.08%

重金属

≤0.0005%

≤0.0005%

≤0.0005%

≤0.0005%

≤0.001%

-

锌

-

-

-

-

-

≤0.0003%

铜

-

-

-

-

-

≤0.0003%

磁性物质

-

-

-

-

-

≤0.0003%

粒度

-

-

-

-

-

D10≥1.0μm

4.0μm≤D50≤16.0μm

D90≤35μm

D100≤60μm