High-Purity Diammonium Phosphate (DAP) 21-53-0 Tech Grade - China Suppliers & Factory for Fertigation Applications
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:
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:
Application Scenarios
Used as a soluble nutrient source for drip irrigation and greenhouse cultivation in modern irrigation systems.
As a raw material, used 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 targeted crop nutrient delivery.
Nutrient Composition & Specifications
| 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 | ✔ Better | Limited |
| Impurity Levels | ✔ Lower | Higher |
| Precision Application | ✔ More Precise | Less Precise |