High-Purity Diammonium Phosphate DAP 21-53-0 from China Suppliers | Factory Direct Water Soluble Fertilizer
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
In modern irrigation systems, Diammonium Phosphate (DAP) is used as a soluble nutrient source for drip irrigation and greenhouse cultivation.
As a raw material, Diammonium Phosphate (DAP) is used in the production of NPK water-soluble fertilizers.
Tech Grade Diammonium Phosphate (DAP) can be used in flame retardants, fermentation nutrients, and chemical intermediates.
Diammonium Phosphate (DAP) can be integrated into foliar nutrition programs.
Nutrient Composition
| Parameter | Value |
|---|---|
| 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
| Advantage | Tech Grade DAP | Conventional DAP |
|---|---|---|
| Dissolution Speed | ✔ Faster | Standard |
| Liquid System Compatibility | ✔ Better | Limited |
| Impurity Levels | ✔ Lower | Higher |
| Precision Application | ✔ More Precise | Less Precise |
Packaging and Supply
- 25 kg Bags
- Jumbo Bags (1 MT)
- Customized Packaging Available
Frequently Asked Questions
Tech Grade Diammonium Phosphate (DAP) undergoes additional purification and crystallization steps compared to standard agricultural-grade DAP. This results in lower insoluble content, reduced heavy metal impurities, and better performance in precision irrigation and industrial systems.
Yes. DAP 21-53-0 Tech Grade is 100% water soluble, ensuring rapid and complete dissolution without leaving residue in tanks, injectors, or irrigation lines.
Yes. Due to its very low water-insoluble matter (≤ 0.05%), Tech Grade DAP is highly compatible with drip irrigation, fertigation systems, and dosing equipment, minimizing the risk of clogging.
Beyond agriculture, Tech Grade Diammonium Phosphate can be used in the production of flame retardants, as a fermentation nutrient in bioprocessing, and as a chemical intermediate in various industrial manufacturing processes.
The product is available in 25 kg bags, 1 MT jumbo bags, and customized packaging options to suit different logistics and storage requirements.
Yes. Tech Grade DAP exhibits stable solution behavior and is suitable for tank mixing with other compatible water-soluble fertilizers. Its high purity ensures minimal interference with other nutrients in liquid formulations.