About Ferrous Sulphate Heptahydrate
1. Ferrous Sulfate Heptahydrate (Most Common)
- Chemical Formula: FeSO7HO
- CAS No.: 7782-63-0
- Molecular Weight: 278.01 g/mol
| Component |
Approx. % |
| Iron (Fe) |
20.1% |
| Sulfur (S) |
11.5% |
| Oxygen (O) |
46.0% |
| Water (7HO) |
22.4% |
2. Anhydrous Ferrous Sulfate
- Chemical Formula: FeSO
- CAS No.: 7720-78-7
- Molecular Weight: 151.91 g/mol
| Component |
Approx. % |
| Iron (Fe) |
36.8% |
| Sulfur (S) |
21.1% |
| Oxygen (O) |
42.1% |
Typical Industrial/Fertilizer Grade Specification
- Ferrous Sulfate (FeSO7HO): 9899% min
- Iron (Fe): 1920% min
- Moisture: 1.0%
- pH (5% solution): 3.04.5
- Appearance: Pale green to bluish-green crystals or powder
This composition is commonly used for water treatment, fertilizers, animal feed, pigments, and wastewater treatment. If you need a COA/specification sheet or SDS-style composition for export, I can provide that as well.
Key CharacteristicsFerrous Sulphate Heptahydrate features high purity (typically 98% min), significant iron content, and is readily soluble in water but insoluble in ethanol. Its crystalline or powdered form is odorless with astringent taste and exhibits a distinctive light green to bluish-green color. The product is non-poisonous when handled properly but can be harmful if ingested in large doses.
Applications Across IndustriesUsed as a fertilizer in agriculture, a flocculant in water treatment, a mordant in textile dyeing, and an iron supplement in pharmaceuticals, Ferrous Sulphate Heptahydrate serves diverse purposes. Its role as an inorganic salt ensures reliability in chemical manufacturing and laboratory analysis.
Safe Handling and StorageTo maximize shelf life and maintain product integrity, store Ferrous Sulphate Heptahydrate in a cool, dry, well-ventilated area away from moisture and strong oxidizing agents. Use protective gloves and eye protection when handling. Proper storage ensures stable material for up to two years.
FAQ's of Ferrous Sulphate Heptahydrate:
Q: How should Ferrous Sulphate Heptahydrate be stored for optimal stability?
A: Ferrous Sulphate Heptahydrate should be stored in a cool, dry, and well-ventilated location, protected from moisture and incompatible substances like strong oxidizing agents. Proper storage helps prevent gradual oxidation and maintains its stability for up to two years.
Q: What are the primary industrial uses of Ferrous Sulphate Heptahydrate?
A: This compound is widely used in agriculture as a fertilizer, in water treatment for flocculation, in pharmaceuticals as an iron supplement, as a mordant in dyeing, and in various industrial and laboratory applications.
Q: When does Ferrous Sulphate Heptahydrate start to degrade or lose efficacy?
A: If kept under ideal conditions-dry, cool, and in sealed packaging-Ferrous Sulphate Heptahydrate remains effective for approximately two years. Exposure to moisture or air accelerates oxidation, potentially altering its effectiveness over time.
Q: Where can Ferrous Sulphate Heptahydrate be sourced or supplied?
A: It is available from chemical exporters, suppliers, and traders globally, often provided in 25kg or 50kg bags, or as specified by the customer. The product is supplied to agricultural, industrial, pharmaceutical, and laboratory sectors.
Q: What precautions should be taken during handling and usage?
A: Users should wear protective gloves and eye protection to avoid skin and serious eye irritation. Washing hands thoroughly after handling is recommended. Avoid ingesting the compound and prevent inhalation of dust during use.
Q: How is Ferrous Sulphate Heptahydrate beneficial as a fertilizer?
A: As a fertilizer, it supplies essential iron to plants, correcting iron deficiency (chlorosis) in crops and contributing to healthier, greener foliage and improved plant growth.
Q: What is the typical process for using Ferrous Sulphate Heptahydrate in water treatment?
A: In water treatment, Ferrous Sulphate Heptahydrate is added as a flocculant, promoting the aggregation and removal of suspended particles. Its high solubility in water allows for easy mixing and efficient treatment processes.