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High-Purity Diammonium Phosphate (DAP) 21-53-0 Tech Grade from China Suppliers | Factory for Fertigation Applications
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High-Purity Diammonium Phosphate (DAP) 21-53-0 Tech Grade from China Suppliers | Factory for Fertigation Applications

Discover our High-Purity Diammonium Phosphate (DAP) 21-53-0, a premium tech-grade fertilizer produced in our advanced factory in China. This solution features exceptional water solubility, rapid dissolution, and minimal insoluble content, making it the ideal choice for industrial applications and precision fertigation systems. As leading suppliers in the industry, we ensure the highest quality standards for optimal crop nutrition and effective soil enhancement

    🔬 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 Rapid dissolution without residue
    🚫 Low Insoluble Matter Reduces clogging risk in irrigation or dosing systems
    🧪 Stable Solution Behavior Suitable for tank mixing and liquid formulations
    📈 High Nutrient Concentration Efficient phosphorus and nitrogen delivery
    📦 Consistent Particle Structure Improved 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

    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%
    ✅ Low water-insoluble content (≤ 0.05%) ensures full compatibility with filtration systems, injectors, and precision irrigation equipment.

    🏆 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

    📦 Packaging and Supply

    • 25 kg Bags
    • Jumbo Bags (1 MT)
    • Customized Packaging Available

    Frequently Asked Questions

    Q What is the difference between Tech Grade DAP and agricultural-grade DAP?
    Tech Grade DAP undergoes additional purification and crystallization steps, resulting in lower insoluble content, reduced heavy metal impurities, and higher solution clarity. Agricultural-grade DAP is typically granular and intended for bulk soil application, while Tech Grade is optimized for water-soluble systems and precision applications.
    Q Is DAP 21-53-0 Tech Grade suitable for drip irrigation systems?
    Yes. Its 100% water solubility and low water-insoluble matter (≤ 0.05%) make it highly compatible with drip irrigation and fertigation systems, minimizing the risk of nozzle or filter clogging.
    Q Can Tech Grade DAP be mixed with other fertilizers in a tank?
    Tech Grade DAP exhibits stable solution behavior and is generally compatible with many water-soluble fertilizers for tank mixing. However, it is recommended to conduct a jar compatibility test before large-scale mixing, as interactions may vary depending on other fertilizer formulations and water quality.
    Q What industrial uses does Tech Grade DAP support?
    Beyond agriculture, Tech Grade DAP is used in flame retardant formulations, fermentation media as a nitrogen and phosphorus nutrient source, and as a chemical intermediate in various industrial processes requiring high-purity phosphate compounds.
    Q What packaging options are available for bulk or commercial orders?
    Tech Grade DAP is available in 25 kg bags, 1 MT jumbo bags, and customized packaging formats to accommodate specific logistics or customer requirements. Please contact our team to discuss your preferred packaging and volume needs.
    Q What is the pH range of a Tech Grade DAP solution and why does it matter?
    A 1% solution of Tech Grade DAP has a pH of 7.5–8.5, making it mildly alkaline. This pH range is important for ensuring compatibility with irrigation systems, preventing pipe corrosion, and supporting optimal nutrient uptake in most crops when used in fertigation programs.