Product Name:
Ferrous Sulphate (Monohydrate / Heptahydrate)
Chemical Category:
Inorganic Salt / Iron Compound
Molecular Formula:
FeSO₄·xH₂O (commonly FeSO₄·7H₂O or FeSO₄·H₂O)
Molecular Weight:
278.01 g/mol (heptahydrate); 169.93 g/mol (monohydrate)
CAS Number:
7782-63-0 (heptahydrate); 17375-41-6 (monohydrate)
Appearance:
Heptahydrate: Blue-green crystals
Monohydrate: Grayish-white to light yellow powder
Ferrous Sulphate is a widely used iron salt, available in monohydrate and heptahydrate forms. It is used across various industries for its coagulating, reducing, and iron-supplying properties. In water and wastewater treatment, it acts as a coagulant and flocculant for phosphorus removal and odor control. Additionally, it is employed in agriculture as a micronutrient fertilizer, in pigment production, cement additives, and iron fortification in food and feed industries. Ferrous Sulphate is also an effective reducing agent for chromate and other oxidized contaminants.
| Grade Type | Description | Typical Fe Content (%) |
| Water Treatment Grade | Used in municipal and industrial wastewater for phosphorus and odor control | 19%–20% (monohydrate); 14%–15% (heptahydrate) |
| Agricultural Grade | Micronutrient for soil amendment and foliar fertilizer | ≥20% (Fe, monohydrate) |
| Feed Grade | Iron source in animal feed formulations | ≥30% FeSO₄ (monohydrate) |
| Industrial Grade | Used in pigments, cement, and chemical synthesis | ≥19%–20% Fe |
| Customized Grade | Tailored particle size, Fe content, or hydration state | As requested |
Water & Wastewater Treatment: Controls hydrogen sulfide odors, reduces phosphorus, and assists coagulation.
Agriculture: Corrects iron deficiency (chlorosis) in crops and enriches soil fertility.
Animal Feed: Provides essential iron in livestock and poultry nutrition.
Pigments & Dyes: Raw material for iron oxide pigments.
Construction: Additive in cement for improved setting and color.
High bioavailability and solubility
Multi-functional: coagulant, fertilizer, feed additive
Cost-effective alternative to other iron salts
Effective for odor and phosphate control
Available in stable powder or crystalline forms
Storage
Store in a dry, well-ventilated, and cool area. Protect from moisture and direct sunlight. Avoid exposure to strong oxidizers and acids. Reseal bags after opening to prevent lumping or oxidation.
Monohydrate: 25kg or 50kg PE-lined woven bag
Heptahydrate: 25kg plastic-lined kraft paper bag or jumbo bag
Custom packaging available upon request
