High-Purity Diammonium Phosphate (DAP) 21-53-0 from China Suppliers | Fast Dissolving Fertilizer Factory
Product Overview
Diammonium Phosphate (DAP) 21-53-0 Tech Grade is a high-purity, fully water-soluble phosphate material designed for industrial processing, fertilizer blending, and advanced fertigation systems. Unlike conventional granular Diammonium Phosphate used in bulk agriculture, this Tech Grade Diammonium Phosphate (DAP) is produced in crystalline form with strict control over solubility, impurity levels, and stability in solution.
This product is developed to meet the growing demand for water-soluble phosphate sources in modern agricultural and industrial applications, where rapid dissolution, compatibility, and consistency are critical. As a premium Diammonium Phosphate (DAP), it provides a reliable source of nitrogen and phosphorus for precision nutrient delivery systems.
Production Process and Quality Control
Tech Grade Diammonium Phosphate (DAP) is manufactured through a controlled neutralization process using purified phosphoric acid and ammonia. Compared with standard agricultural-grade Diammonium Phosphate, the Tech Grade DAP undergoes additional purification and crystallization steps.
Purified Phosphoric Acid & Ammonia Input
Controlled Neutralization Reaction
Advanced Purification Process
Precision Crystallization
Quality Control & Testing
The result is a Diammonium Phosphate (DAP) that performs consistently in high-demand applications, especially where filtration systems, injectors, or mixing tanks are sensitive to impurities. Key quality outcomes include:
- Lower insoluble content
- Higher purity and clarity in solution
- Reduced heavy metal impurities
- Stable chemical composition
Key Performance Features
Diammonium Phosphate (DAP) 21-53-0 Tech Grade is engineered for performance rather than bulk supply. Its core advantages include:
- Fully water soluble, ensuring rapid dissolution without residue
- Low insoluble matter, reducing the risk of clogging in irrigation or dosing systems
- Stable solution behavior, suitable for tank mixing and liquid formulations
- High nutrient concentration, providing efficient phosphorus and nitrogen delivery
- Consistent particle structure, improving handling and storage stability
Application Scenarios
Used as a soluble nutrient source for drip irrigation and greenhouse cultivation in modern irrigation systems.
Used as a raw material in the production of NPK water-soluble fertilizers.
Applicable in flame retardants, fermentation nutrients, and chemical intermediates.
Can be integrated into foliar nutrition programs for precise crop nutrient management.
Nutrient Composition
| Parameter | Specification |
|---|---|
| Nitrogen (N) | ≥ 21% |
| Phosphorus (P₂O₅) | ≥ 53% |
| Water Solubility | 100% |
| pH (1% solution) | 7.5 – 8.5 |
| Moisture | ≤ 0.3% |
| Water-Insoluble Matter | ≤ 0.1% |
Product Advantages vs. Conventional DAP
| Feature | Tech Grade DAP | Conventional DAP |
|---|---|---|
| Dissolution Speed | ✅ Faster | ⚠️ Slower |
| Liquid System Compatibility | ✅ Excellent | ⚠️ Limited |
| Impurity Levels | ✅ Lower | ⚠️ Higher |
| Application Precision | ✅ High | ⚠️ Standard |
Packaging and Supply
25 kg Bags
Jumbo Bags (1 MT)
Customized Packaging Available