Chemical Product Library / Reference
Ammonium polyphosphate
Chemical identity, technical indicators, performance and application reference. Confirm specifications and regulatory suitability against supplier documentation.
Chemical identity
| English name | Ammonium polyphosphate |
|---|---|
| English synonyms | APP;Ammonium polyphosphate;Polyphosphoric acid ammonium salt |
| Chinese name | 聚磷酸铵 |
| Chinese synonyms | APP;阻燃剂APP;多聚磷酸铵 |
| Chemical category | Flame Retardants |
| CAS No. | 68333-79-9 |
| EINECS No. | Not provided |
| Molecular formula | (NH4PO3)n |
| Molecular weight | Not provided |
PubChem structure images are reference depictions, not proof of composition, purity, grade, or regulatory status. Mixtures and polymers may not have a single representative structure.
Technical indicators
P content ≥31.0%; N content ≥14.0%; pH (10% aqueous suspension) 5.5–7.5; water solubility ≤0.5 g/100mL (grade II)
Performance characteristics
White powder, halogen-free phosphorus-nitrogen flame retardant, intumescent char formation[citation:13]
Application scenarios
Intumescent flame retardant systems for polyolefins, polyurethane, coatings, textiles