Ammonium Polyphosphate

Product Information

Common Names

• Ammonium Polyphosphate

• APP Flame Retardant

• Ammonium Polyphosphate Flame Retardant

• Polyphosphoric Acid Ammonium Salt

• Phosphoric Acid Ammonium Salt Polymer

Typical Specifications

These values represent common commercial specifications for standard uncoated APP Phase II. Exact specifications vary by supplier and grade. Final supply specifications are confirmed with the quotation and Certificate of Analysis (COA).APP Grades

Flame-Retardant Grades

Phase II ammonium polyphosphate is commonly used as a low-water-solubility powder in intumescent coatings and polymer formulations. Grade selection should consider crystal phase, particle size, water solubility and processing conditions.

Fertilizer Grades

APP products used in fertilizer formulations may differ in physical form, solubility and nutrient analysis from flame-retardant powders. Fertilizer-grade specifications should be requested separately and should not be inferred from the powder specifications on this page.

Applications of Ammonium Polyphosphate

Flame-retardant performance depends on the APP grade, addition level, binder or polymer, other additives and processing conditions. Fire ratings, smoke behavior and durability must be evaluated in the finished formulation.

1. Flame Retardant for Plastics

Ammonium Polyphosphate is widely used in polymer flame retardant systems.

Applications:

• Polypropylene (PP)

• Polyethylene (PE)

• Polyamide (PA)

• Polyurethane (PU)

• Epoxy resin

Benefits:

• Improves flame resistance

• Reduces combustion intensity

• Enhances fire safety performance

2. Intumescent Fire Retardant Coatings

APP is a key component in intumescent coating formulations.

Applications:

• Steel structure fire protection coatings

• Building fire-resistant coatings

• Industrial protective coatings

Functions:

• Forms protective carbon layers

• Reduces heat transfer

• Improves fire resistance time

3. Construction Materials

Applications:

• Fire-resistant boards

• Insulation materials

• Building panels

• Composite materials

Advantages:

• Improves fire rating

• Enhances material safety

• Provides long-term stability

4. Textile Flame Retardant Treatment

Ammonium Polyphosphate is used for:

• Flame retardant textile finishing

• Fabric treatment

• Fiber modification

Benefits:

• Improves flame resistance

• Provides durable fire protection

5. Adhesives and Sealants

APP is used as a flame retardant additive in:

• Industrial adhesives

• Polymer sealants

• Composite bonding systems

6. Agricultural Formulations

• Fertilizer-grade ammonium polyphosphate can provide nitrogen and phosphorus in agricultural nutrient formulations.

• Its physical form, solubility and nutrient analysis may differ from those of low-solubility flame-retardant powders.

• Request fertilizer-grade specifications separately before selecting a product for agricultural use.

Advantages of Our Ammonium Polyphosphate Supply

Reliable Product Quality

We provide:

✔ High purity APP
✔ Stable phosphorus and nitrogen content
✔ Consistent particle size
✔ Strict quality control

Customized Solutions

Available options:

• APP Phase I

• APP Phase II

• Different polymerization degrees

• Customized particle sizes

• Customized packaging

Professional Export Service

We provide:

• SDS documentation

• COA certificates

• Technical Data Sheets

• Global logistics support

Packaging and Storage

Standard Packaging

Available packaging:

• 25 kg PP woven bags with PE liner

• 500 kg jumbo bags

• 1000 kg bulk bags

• Customized packaging

Storage Recommendations

Store Ammonium Polyphosphate:

• In a cool and dry warehouse

• In sealed containers

• Protected from moisture

• Avoid direct sunlight

• Keep away from strong acids and alkalis

Proper storage ensures long-term product stability.

Frequently Asked Questions (FAQ)

What is Ammonium Polyphosphate?

Ammonium Polyphosphate (APP) is an inorganic phosphorus-nitrogen compound mainly used as a halogen-free flame retardant and fertilizer additive.

Contact Aozun

For an ammonium polyphosphate quotation, please provide:

• Intended application and required grade

• Phosphorus and nitrogen specifications

• Particle size and water-solubility requirements

• Order quantity, packaging and destination

Please request the current Technical Data Sheet (TDS), Certificate of Analysis (COA) and Safety Data Sheet (SDS) for the proposed grade.

Email: lisa@aozunchem.com
WhatsApp: +86-18651215887
Tel: +86-519-83382137