Ferrous Sulphate

Ferrous Sulphate (FeSO₄) is a blue-green crystalline salt widely used in water and wastewater treatment as a coagulant and reducing agent. It is also applied in fertilizers, pigments, and as an iron supplement in medicine. In water treatment, it helps remove impurities and control odor.

Specification:

Chemical Formula                          : FeSO4.7H2O
CAS Number                                  : 7782-63-0
Appearance                                    : Pale green crystals or powder.
Iron (Fe2+) Content                        : ≥ 19%
pH (1% Solution)                            : ~3.5 - 4.5
Solubility in Water                           : Fully soluble.

Application:

 • Removes phosphates, sulfides, and heavy metals.
 • Conditions sludge for better dewatering.
 • Acts as a coagulant to remove turbidity and improve clarity.
 • Reduces hydrogen sulfide generation in anaerobic systems.