Ammonium Sulfate (21-0-0+24S) Fertilizer Manufacturer & Supplier
Ammonium Sulfate (N)
| Product Name: | ammonium Sulphate (21-0-0+24S) |
| Category: | Straight Fertilizer |
| Ingredients: | 21% Nitrogen (N) , 24% Sulfur (S) |
| CAS No.: | 7783-20-2 |
| Formula: | (NH₄)₂SO₄ |
| Form: | White or colorless crystalline / granular solid |
| Solubility: | 100% water-soluble |
| Place of Origin : | Shangdong,China |
| MOQ : | 10T (Sample free) |
| Certificate: | ISO9001, ISO 22241-1… |
Ammonium Sulfate Description
Ammonium Sulfate (also known as Ammonium Sulphate in UK spelling) is a highly efficient nitrogen and sulfur fertilizer containing 21% nitrogen (N) and 24% sulfur (S). It is widely used in agriculture, industrial manufacturing, and pharmaceutical applications due to its excellent solubility, stable chemical properties, and reliable nutrient availability.
As a trusted ammonium sulfate fertilizer manufacturer and bulk supplier, we provide high-purity products suitable for soil application, fertigation systems, and industrial processing. Ammonium sulfate is especially effective for sulfur-deficient soils and alkaline soils, helping improve crop yield, protein synthesis, and overall plant health.
Key Benefits of Ammonium Sulfate Fertilizer
Provides dual nutrients: nitrogen (N) and sulfur (S)
Improves crop yield and protein content
Enhances nutrient uptake in sulfur-deficient soils
Slightly acidifying effect, ideal for alkaline soils
High solubility ensures fast nutrient availability
Suitable for a wide range of crops and applications
Ammonium Sulfate Product Specifications
| Property | Specification |
|---|---|
| Appearance | White crystalline powder |
| Nitrogen (N) | ≥ 21.0% |
| Sulfur (S) | ≥ 24.0% |
| Moisture | ≤ 1.0% |
| pH (5% aqueous solution) | 5.0 – 6.0 |
| Insoluble Matter | ≤ 0.005% |
| Free Acid (as H₂SO₄) | ≤ 0.05% |
| Iron (Fe) | ≤ 0.007% |
| Arsenic (As) | ≤ 0.00005% |
| Heavy Metals (as Pb) | ≤ 0.005% |
| Solubility | 100% water soluble |
Types of Ammonium Sulfate
Granular Ammonium Sulfate
Particle Size: 2–5 mm
Application: Ideal for broadcasting and mechanical spreading
Suitable Crops: Wheat, corn, rice, vegetables
Crystalline Ammonium Sulfate
Particle Size: Fine crystals
Application: Fast nutrient release, fertigation, hydroponics
Caprolactam Grade Ammonium Sulfate
Particle Size: 0.2–2 mm
Application: Raw material for caprolactam and nylon production
Applications of Ammonium Sulfate
Agriculture
Ammonium sulfate is widely used as a nitrogen and sulfur fertilizer to improve soil fertility and promote healthy crop growth. It is suitable for crops such as corn, wheat, rice, cotton, vegetables, and oilseeds.
Industrial Applications
In industry, ammonium sulfate is used in water treatment, flame retardant production, and the manufacturing of various ammonium salts and chemicals.
Pharmaceutical Manufacturing
Ammonium sulfate serves as an important reagent in pharmaceutical processes, including protein purification and formulation of specific medicines.
Packaging & Storage
Packaging Options
25 kg bags
50 kg bags
1,000 kg jumbo bags
Bulk packaging available on request
Storage Guidelines
Store in a cool, dry, and well-ventilated area. Avoid moisture exposure and contact with incompatible materials to maintain product quality and flowability.
Safety and Handling:
Precautionary Measures:
When handling ammonium sulfate, it’s recommended to use personal protective equipment (PPE) such as gloves, safety goggles, and masks to avoid irritation or inhalation of dust.First Aid Measures:
In case of eye contact, rinse immediately with water for 15 minutes and consult a doctor if irritation persists. If ingested, seek medical attention promptly.


What will you get when touch?
Why Choose Our Ammonium Sulfate Fertilizer?
Reliable ammonium sulfate manufacturer and exporter
High-purity product with stable quality
Competitive bulk pricing and flexible packaging
Free samples and technical support available
Fast response within 6 hours
We supply ammonium sulfate fertilizer worldwide for agriculture, industrial, and pharmaceutical use. Contact us today for price, COA, MSDS, and customized supply solutions.
















