Diammonium Phosphate DAP Fertilizer 18-46-0 NPK White Crystalline
Diammonium Phosphate is a high-efficiency nitrogen-phosphorus compound fertilizer and an important industrial raw material, renowned for its high nutrient content, good physical properties, and versatility. It plays a crucial role in modern agriculture and various industrial processes.
Key Specifications
Aliases: DAP
English Name: Diammonium Phosphate
Chemical Formula: (NH₄)₂HPO₄
Molecular Weight: 132.06
CAS Number: 7783-28-0
Key Properties
High nutrient content (N & P₂O₅), good granular stability, low water solubility, slightly alkaline.
Advanced Application Scenarios
1. High-Efficiency Base Fertilizer in Agriculture
- Used as a primary base fertilizer for a wide range of crops like cereals, oilseeds, and fruits
- Provides readily available nitrogen and phosphorus for early growth stages
- Suitable for neutral to acidic soils, helping to ameliorate soil acidity
2. Fire Retardant Component in Industrial Safety
- Acts as an effective fire retardant in wood, paper, and textiles
- Promotes char formation and releases non-flammable ammonia and water vapor when heated
- Used in fire extinguishing powders for Class A and B fires
3. Nutrient Source and Buffer in Biotechnology
- Serves as a source of nitrogen and phosphorus in microbial fermentation processes
- Used in production of antibiotics, vitamins, and yeast
- Functions as a buffering agent in cell culture media to maintain stable pH
4. Flux and Precursor in Industrial Chemistry
- Used as a flux in soldering and metalworking to prevent oxide formation
- Acts as a precursor for the synthesis of other ammonium phosphates
Technical Advantages
| Parameter |
Specification |
| Nitrogen (N) Content |
Typically 18% |
| Phosphorus (P₂O₅) Content |
Typically 46% |
| Water Solubility |
>80% of phosphorus is water-soluble |
| Appearance |
Typically grey or off-white granules |
| Solubility |
Soluble in water; slightly alkaline (pH ~8.0) |
Why Choose Our DAP Fertilizer?
High-purity products, in compliance with international standards
30+ Years Chemical Manufacturing Experience
Strict QC with Batch Traceability
Global logistics, supporting sea and air transportation
Technical support, providing customized solutions
Factory direct supply, with strong price competitiveness
