Chemical name: ammonium sulphate
Synonyms: diammonium sulfate,sulfuric acid, diammonium salt
CAS: 7783-20-2
EINECS: 231-984-1
Molecular formula:(NH₄)₂SO₄
Molecular weight: 132.14
Specification
| Item | Standard |
| Color | White |
| Nitrogen | 20.5% min |
| Moisture | 1.0% max |
| S | 23.5% min |
| Free Acid | 0.2% max |
| Particle Size（2.00-5.00 mm ） | 90% min |
Packing: 25kg bag, customized packing is available.
Usage:
Ammonium sulfate has been one of the first and most widely used nitrogen (N) fertilizers for crop production. It is particularly valuable in situations where both nitrogen and sulfur are required. Its high solubility makes it versatile for a variety of agricultural applications.
Key Applications of Ammonium Sulphate
- Nitrogen fertilizer: 21% N content — supplies ammonium-N that is readily absorbed by crops, especially in alkaline or calcareous soils.
- Sulfur nutrition: 24% S content addresses sulfur deficiency common in high-yield crops like canola, wheat, and corn.
- Soil acidification: Lowers pH in overly alkaline soils, improving nutrient availability for crops such as blueberries and potatoes.
- Fertigation and foliar spray: High solubility makes it suitable for drip irrigation systems and liquid fertilizer blends.
- Industrial uses: Flame retardant in textiles, food additive (E517), and raw material in caprolactam production.
Unifarm Chemical supplies food-grade and technical-grade ammonium sulphate from China, exported to agricultural markets across Africa, Southeast Asia, and Latin America. Available in 25 kg bags and bulk. Contact us for pricing and availability.
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Read our in-depth sourcing and agronomic guide: Ammonium Sulphate Fertilizer: Complete Buyer’s Guide.