China Ferrous Sulphate Heptahydrate Water Treatment / Fertilizer Grade, Find details about China Ferrous Sulphate Heptahydrate, Chemical Ferrous Sulfate from Ferrous Sulphate Heptahydrate Water Treatment / Fertilizer Grade
Testing Item | Standard | Result |
Purity | ≥98% | 98.50% |
Ferrum (Fe) | ≥19.7% | 20.20% |
Arsenic (As) | ≤5PPM | 2.00PPM |
Heavy Metal (Pb) | ≤10PPM | 5.00PPM |
Cadmium(Cd) | ≤10PPM | 3.00PPM |
Water Insoluble | ≤0.5% | 0.3% |