Ammonium polyphosphate

Description

1. Product Overview
   Ammonium Polyphosphate (APP) is a high-performance inorganic polymer widely used as a flame retardant and phosphorus-nitrogen-based additive across multiple industrial sectors. It is primarily applied in intumescent fire protection systems, coatings, plastics, rubber, and construction materials to enhance fire resistance and thermal stability. The product delivers exceptional flame-retardant efficiency through char formation and heat barrier development, significantly improving material safety standards. In today’s regulatory-driven market, APP plays a strategically important role in enabling compliance with stringent fire safety and environmental regulations while maintaining material performance integrity.
2. Key Specifications & Technical Characteristics

• Chemical composition: (NH₄PO₃)n (Polymeric ammonium phosphate)
• Phosphorus content: ≥ 30% (typical industrial grade range)
• Nitrogen content: 14–15%
• Purity level: ≥ 95% (industrial grade)
• Physical form: White crystalline powder or microgranular solid
• Particle size: Customizable (typically 10–50 microns for coating applications)
• Density: ~1.7–1.9 g/cm³
• Solubility: Slightly soluble in water (improves stability in formulations)
• Packaging options: 25 kg bags, 500 kg jumbo bags, or customized bulk packaging
• Shelf life: 24 months under dry, cool, and sealed storage conditions

3. Core Industrial Applications
   Ammonium Polyphosphate is extensively used in the flame retardant industry, particularly in intumescent coatings for steel structures, cables, and building materials. It is widely applied in plastics (PE, PP, epoxy resins), rubber compounds, adhesives, and sealants to improve fire resistance and thermal stability. In construction, it enhances the safety performance of insulation foams, panels, and coatings used in high-risk environments. Compared to alternative halogen-based flame retardants, APP offers superior environmental safety, lower smoke toxicity, and better regulatory compliance, making it a preferred solution in modern industrial safety systems.
4. Competitive Advantages

• High phosphorus efficiency ensures superior flame retardant performance
• Stable and consistent quality suitable for large-scale industrial production
• Reliable global supply chain with scalable bulk availability
• Cost-effective alternative to halogenated flame retardants
• Environmentally safer, low-smoke, and halogen-free solution
• Strong compatibility with polymers and resin systems
• Full technical documentation and formulation support available for industrial clients
• Optimized logistics handling for bulk international shipment and storage efficiency

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): BULK 20 MT
• Loading capacity: 20–25 MT per 20FT container (depending on packaging configuration)