How Does Ferrous Sulfate Heptahydrate Support Plant Growth, Animal Health, and Industrial Processes?
Technical Introduction
Ferrous sulfate heptahydrate (FeSO₄·7H₂O) is a blue-green crystalline salt that contains about 20% elemental iron.
It is highly soluble in water and is an important source of iron (Fe²⁺), an essential micronutrient for plants, animals, and humans.
This compound is widely used in agriculture, animal feed, water treatment, and manufacturing.
Applications
1. Agriculture
Micronutrient Fertilizer: Corrects iron chlorosis in crops, especially in alkaline soils.
Soil Amendment: Acidifies soil, improving nutrient availability.
Fungicidal Uses: Controls moss and certain plant diseases.
2. Animal Feed
Feed Additive: Supplies bioavailable iron to prevent anemia in livestock and poultry.
3. Water Treatment
Coagulant Aid: Helps remove phosphates and suspended solids.
Odor Control: Reduces hydrogen sulfide formation in wastewater.
4. Industrial Uses
Pigment Manufacturing: Raw material for iron oxide pigments.
Cement Industry: Reduces chromium (VI) to non-toxic chromium (III) in cement.
Advantages
Cost-Effective Iron Source: Economical compared to other iron chelates.
Dual Function: Works as both a nutrient and a soil acidifier.
Versatility: Applicable in agriculture, feed, water treatment, and industry.
High Water Solubility: Ensures quick nutrient release and uptake.
Typical Parameters
| Property | Value |
|---|---|
| Chemical Formula | FeSO₄·7H₂O |
| Iron (Fe) Content | 19–20% |
| Appearance | Blue-green crystalline granules |
| Solubility in Water | 100% |
| pH (1% solution) | ~3.0 |
| Purity | ≥ 98% |
| Shelf Life | 2 years (dry storage) |
FAQs
Q1: How quickly does ferrous sulfate correct iron deficiency in plants?
A1: Visible improvement usually appears within 7–10 days after application.
Q2: Can it be mixed with other fertilizers?
A2: Yes, but avoid mixing with alkaline products to prevent precipitation.
Q3: Is it safe for animal consumption?
A3: Yes, when used at approved feed additive levels.
Q4: Does it change soil pH?
A4: Yes, it slightly lowers pH, which benefits crops in alkaline soils.
Q5: How is it stored?
A5: Keep in a dry, well-ventilated area; it can oxidize to ferric sulfate if exposed to moisture and air.
Free Consultation
Name*
E-Mail*
TEL
Message*