info@hontonco.com (086) 155 1716 0168
English Español
Water Treatment Chemicals

Product Name: Ferrous Sulphate Heptahydrate

Other name: Ferrous sulfate heptahydrate; Iron sulfate heptahydrate, Ferrous sulfate; Iron(II) sulphate heptahydrate, Ferrous sulfate hepta, Iron-sulfuric acid hydrate.

Molecular formula: FeSO4·7H2O

CAS No.: 7782-63-0

Molecular weight: 278.05

EINECS No.: 231-753-5

Ferrous sulfate is the chemical compound with the formula FeSO4. It is used medically to treat iron deficiency, and also for industrial applications. Known since ancient times as copperas and as green vitriol, the blue-green heptahydrate is the most common form of this material. All iron sulfates dissolve in water to give the same aquo complex [Fe(H2O)6]2+, which has octahedral molecular geometry and is paramagnetic.

ItemIndex
  FeSO4 · 7H2O, %  ≥98
Chloride (As Cl), % ≤0.02
Tio2, % ≤0.75
Insoluble , % ≤0.5
  Free acid(as H2SO4), % ≤1
As, % ≤0.0001
Pb, % ≤0.0005

Ferrous sulphate is mainly used as a precursor to other iron compounds.It is a reducing agent,for the reduction of chromate in cement, and also can be used to stain concete and some limetones and sandstones a yellowish rust color. Meanwhile, Ferrous sulphate has been applied for the purification of water by flocculation and for phosphate removal in municipal and industrial sewage treatment plants to prevent eutrophication of surface water bodies.