Ammonium Polyphosphate (APP)
CAS #:
68333-79-9
Ammonium Polyphosphate (APP) is a versatile phosphorus-based compound widely used in liquid fertilizers, fire-retardant systems, and specialty industrial formulations.
Ammonium Polyphosphate (APP) is a highly effective phosphorus-based compound valued for its excellent solubility, controlled nutrient release, and multifunctional performance. Widely used in liquid fertilizers, fire-retardant systems, and specialty industrial applications, APP delivers consistent quality and reliable results. Its ability to provide both nitrogen and phosphorus in a stable, easy-to-handle form makes it a preferred choice for manufacturers, formulators, and agricultural producers seeking efficiency and performance.
General Info & Properties
Chemical Type: Condensed ammonium phosphate
Appearance: Clear to slightly hazy liquid or white solid
Solubility: Highly soluble in water
Applications
Agricultural Fertilizers
A primary phosphorus source in liquid fertilizers and fertigation systems. APP improves nutrient availability, supports strong root development, and enhances overall crop performance in row crops, orchards, and specialty agriculture.
Fire Retardants & Flame-Resistant Materials
Used in intumescent coatings, plastics, textiles, and building materials to improve fire resistance by promoting char formation and reducing flame spread.
Industrial & Specialty Chemical Formulations
Functions as a buffering agent, dispersant, and phosphorus source in a variety of industrial processes and specialty chemical products.
Water Treatment & Scale Control
Applied in select water-treatment formulations to sequester metal ions and control scale formation in industrial systems.
Markets
Agriculture, CASE, Construction, Water Treatment
Advantages
Efficient Nutrient Delivery
Provides both nitrogen and phosphorus in a readily available form, supporting balanced plant nutrition and improved fertilizer efficiency.
Excellent Solubility & Compatibility
Liquid grades blend easily with other fertilizers and micronutrients, simplifying formulation and application.
Multi-Industry Versatility
Suitable for agriculture, fire protection, water treatment, and specialty manufacturing—reducing the need for multiple products.
Improved Performance & Stability
Offers controlled phosphorus release and strong chemical stability, minimizing losses and enhancing effectiveness.
Consistent, High-Quality Production
Manufactured to strict quality standards, ensuring reliable performance batch after batch.
Safety & Handling
Ammonium Polyphosphate is generally considered low to moderate hazard when handled properly but requires standard industrial precautions.
May cause mild irritation to eyes or skin with direct contact.
Avoid inhalation of aerosols or dust (solid grades).
Non-flammable under normal conditions.