Physico-chemical property:
Molecular formula: ZnSO4·7H2O
Molecular weight: 287.56
CAS:7446-20-0
Executive standard:GB/T 666-2011
Item | AR(%) |
含量(ZnSO₄·7H2O) | ≥99.5 |
pH值(50g/L溶液,25℃) | 4.4~6.0 |
澄清度试验,号 | ≤3 |
水不溶物 | ≤0.01 |
氯化物(Cl) | ≤0.0005 |
总氮量(N) | ≤0.001 |
铜(Cu) | ≤0.001 |
铁(Fe) | ≤0.0005 |
锰(Mn) | ≤0.0003 |
镁(Mg) | ≤0.005 |
铅(Pb) | ≤0.001 |
镉(Cd) | ≤0.0005 |
砷(As) | ≤0.00005 |
钠(Na) | ≤0.05 |
钾(K) | ≤0.01 |
钙(Ca) | ≤0.005 |