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Chemical name | Ferrous sulfate heptahydrate | ||||||
Other name | Iron sulfate heptahydrate, Ferrous sulfate, Iron sulfate | ||||||
CAS # | 7783-20-2 | ||||||
Purity | 99% | ||||||
Molecular formula | 7782-63-0 | ||||||
Molecular weight | 278.01 | ||||||
Chemical Properties | Blue-green monoclinic crystals or particles. No smell. The surface oxidizes to brown basic ferric sulfate in moist air. It becomes tetrahydrate at 56.6℃ and monohydrate at 65℃. Soluble in water, almost insoluble in ethanol. | ||||||
Application | Used as Chromatographic analysis reagent. Drop analysis for platinum, selenium, nitrite and nitrate. Reducing agent. Make ferrite. Clean water. Polymerization catalyst. Photoengraving, etc. | ||||||
Packing | 500g/1kg/25kg or as request |
ITEM | STANDARD |
FeSO4·7H2O | ≥ 99% |
Water insoluble matter | ≤ 0.005% |
Cl | ≤ 0.001% |
Pb | ≤ 0.002% |
N | ≤ 0.001% |
PO4 | ≤ 0.0005% |
Zn | ≤ 0.005% |
Mn | ≤ 0.05% |
Cu | ≤ 0.02% |
Fe | ≤ 0.02% |
As | ≤0.0002 % |
Ammonia non precipitate (in sulfate) | ≤0.05% |
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