l Chemical purity(≥99.5%)
High purity grade(≥99.5%)
GB/T665-2007
项目 | 指标 |
优级纯 | 分析纯 | 化学纯 |
硫酸铜(CuSO4·5H2O)含量w/% ≥ | 99.5 | 99.0 | 99.0 |
水不溶物w/% ≤ | 0.005 | 0.005 | 0.01 |
氯化物(Cl)w/% ≤ | 0.001 | 0.001 | 0.002 |
总氮量(N)w/% ≤ | 0.001 | 0.001 | 0.003 |
钠(Na)含量w/% ≤ | 0.001 | 0.002 | 0.005 |
钾(K)含量w/% ≤ | 0.001 | 0.001 | 0.002 |
铁(Fe)含量w/% ≤ | 0.001 | 0.002 | 0.005 |
镍(Ni)含量w/% ≤ | 0.0005 | 0.001 | 0.005 |
锌(Zn)含量w/% ≤ | 0.0005 | 0.001 | 0.005 |
砷(As)含量w/% ≤ | 0.0003 | - | - |
铅(Pb)含量w/% ≤ | 0.0005 | - | - |
钙(Ca)含量w/% ≤ | 0.0005 | - | - |
镉(Cd)含量w/% ≤ | 0.0001 | - | - |
钴(Co)含量w/% ≤ | 0.0005 | - | - |
pH(5%,20℃) | 3.5~4.5 |