Description
Chemical Identity and Description
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Chemical Name: Ferrous Sulfate Monohydrate
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Chemical Formula: FeSO₄·H₂O
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CAS Number: 17375-41-6
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Molecular Weight: 169.93 g/mol
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Appearance: Pale green to off-white powder or granules
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Odor: Odorless
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Solubility: Soluble in water
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Iron Content: Approximately 30%–32% Fe
Unlike its heptahydrate form, Ferrous Sulfate Monohydrate contains only one molecule of water, resulting in a more concentrated form of iron—making it highly preferred in feed-grade and fertilizer-grade applications.
Technical Specifications
| Property | Specification |
|---|---|
| Iron (Fe) Content | 30% – 32% |
| Purity | ≥ 91% |
| Moisture Content | ≤ 10% |
| Solubility in Water | Easily soluble |
| pH (5% solution) | 3.0 – 5.0 |
| Form | Crystalline powder or granules |
| Packaging | 25 kg bags, 1000 kg jumbo bags |
| Shelf Life | 24 months when stored properly |
Applications
🌱 Agriculture
Ferrous Sulfate Monohydrate is a widely used micronutrient fertilizer that corrects iron deficiency (chlorosis) in crops such as:
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Corn
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Soybean
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Citrus
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Grapevines
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Rice
It boosts plant health, chlorophyll production, and yield by restoring necessary iron levels in soil, particularly alkaline or calcareous soils where iron uptake is difficult.
🐄 Animal Feed Supplement
In the feed industry, it serves as a critical source of iron in:
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Poultry diets
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Swine and cattle feed
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Aquaculture
Iron is essential for oxygen transport (hemoglobin), enzyme systems, and overall growth and performance of livestock.
💧 Water Treatment
Ferrous sulfate monohydrate is used in water purification and wastewater treatment for:
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Phosphate removal
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Odor control
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Sludge conditioning
🏭 Industrial Use
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Used in the production of iron oxide pigments
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Functions as a reducing agent in chemical synthesis
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Aids in chromate reduction in cement manufacturing
Benefits
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✅ High Iron Concentration: Provides more iron per unit weight compared to heptahydrate
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✅ Cost-Efficient: Requires lower dosage due to high purity
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✅ Versatile Applications: Suitable for feed, fertilizer, industrial, and water treatment uses
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✅ Shelf-Stable: Extended shelf life when stored in dry, cool conditions
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✅ Environmentally Friendly: Non-toxic and biodegradable
Storage & Handling
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Store in a dry, well-ventilated area away from moisture and direct sunlight
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Avoid contact with acids and oxidizers
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Use gloves and protective eyewear when handling large quantities
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Follow local regulations for safe disposal and transportation
Conclusion
Ferrous Sulfate Monohydrate is a powerful, efficient, and economical iron source that supports plant growth, animal health, clean water, and industrial manufacturing. With its high iron content, excellent solubility, and broad usability, it is an essential material for companies looking to enhance productivity, sustainability, and cost-efficiency. Whether in agriculture, animal nutrition, or industrial processing, this compound remains a cornerstone of performance and reliability.
