Ammonium polyphosphate

Chemical name: Ammonium polyphosphate
Brand name: GreatBay XZ-EF002
Equivalent brand: Exolit AP 422
Molecular formula:
(NH4PO3)n  n>1000
Ammonium polyphosphate (XZ-EF002) is a non-halogen flame retardant. It acts as flame retardant by intumescence mechanism. When XZ-EF002 is exposed to fire or heat, it decomposes to polymeric phosphate acid and ammonia. The polyphosphoric acid reacts with hydroxyl groups to form a nonstable phosphateester. Following dehydration of the phosphate ester, a carbon foam is built up on the surface and acts as an insulation layer.
Guaranteed Technical Specifications :
Specifications  XZ-EF002
Appearance White powder
P2O5 %≥ 71
N %≥ 14
Decomposition Temperature ℃> 270
Water %< 0.25
Solubility g/100ml(H2O, 25℃) < 0.5
PH Value(10% water solution) 6.5-7.5
Viscosity(at 25℃) < 20
Size 325-500 mesh
In plastic (PP, PE, PVC, ect.), Polyester, Rubber, and Expandable fireproof coatings.
Packing and Storage:
Packed in 25 kg net paper bags.