High Purity DAP 21-53-0 from China Suppliers | Fully Water Soluble Tech Grade for Fertigation & Industrial Use
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 to ensure:
- Lower insoluble content
- Higher purity and clarity in solution
- Reduced heavy metal impurities
- Stable chemical composition
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 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
1. Fertigation Systems
In modern irrigation systems, Diammonium Phosphate (DAP) is used as a soluble nutrient source for drip irrigation and greenhouse cultivation.
2. Water-Soluble Fertilizer Blending
As a raw material, Diammonium Phosphate (DAP) is used in the production of NPK water-soluble fertilizers.
3. Industrial Applications
Tech Grade Diammonium Phosphate (DAP) can be used in flame retardants, fermentation nutrients, and chemical intermediates.
4. Foliar and Precision Nutrition Programs
Diammonium Phosphate (DAP) can be integrated into foliar nutrition programs.
Nutrient Composition
- Nitrogen (N): ≥ 21%
- Phosphorus (P₂O₅): ≥ 53%
- Water solubility: 100%
- pH (1% solution): 7.5–8.5
- Moisture: ≤ 0.3%
- Water-insoluble matter: ≤ 0.1%
Low water-insoluble content (≤0.05%) ensures compatibility with filtration systems, injectors, and precision irrigation equipment.
Product Advantages vs Conventional DAP
- Faster dissolution speed
- Better compatibility in liquid systems
- Lower impurity levels
- More precise application capability
Packaging and Supply
- 25 kg bags
- Jumbo bags (1 MT)
- Customized packaging available