Ammonium polyphosphate (APP)

Product Name: Ammonium polyphosphate (APP)

Equivalent Name: Clariant Exolit 422; Budenheim Cros 484

Cas No. : 68333‐79‐9

Chemical Structure:

Ammonium polyphosphate APP chemical structure baoxu chemical



APP is an ammonium polyphosphate flame retardant mainly used in Plastic(PP, PE, PA, PVC, PBT), PU, Rubber, Paint, coating, laminates and reinforced materials.


  • APP flame retardant differs from most other commercial products in the following ways:‐ greatly reduced solubility in water.‐ lower viscosity in aqueous suspensions.‐ lower viscosity in PU polyol suspensions.‐ very low acid number.

Typical Properties

Appearance white powder

P %31 ‐ 32

N %14 min

Degree of polymerization 1500 min

Density (g/cm3) 19

Decomposition temperature °C 275 min

Solubility in water g(25°C g/100ml H2O)02

Viscosity mpas (25°C in 10%suspension) 100 max

PH 55 ‐ 75

Average particle size (um)15 max

These properties are typical but do not constitute a specification either in part or as a whole. Specification data is available on request from sales, customer service or customer technical service.


Transportation classification: No regulated for transportation.

Packing: 25kg/bag; 1mt/pallet; 20mt/20’FCL.


TDS / MSDS Download

flame retardant APP Ammonium polyphosphate 68333-79-9 tds baxou chemical

flame retardant APP Ammonium polyphosphate 68333-79-9 msds baxou chemical