指标名称

标 准

CoSO₄·7H₂O

CoSO₄·6H₂O

钴

≥20.0%

≥21.9%

水不溶物

≤0.02%

≤0.02%

铁(Fe)

≤0.01%

≤0.01%

镍(Ni)

≤0.1%

≤0.1%

锌(Zn)

≤0.005%

≤0.005%

铜（Cu）

≤0.005%

≤0.005%