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Ammonium Polyphosphate (Phase-II):
Molecular formula: (nh 4po 3) n n> 1000
Cas no. : 68333-79-9
Einecs no. : 269-789-9
Model no. : cf-app 201
Ammonium polyphosphate (phase II) is a non-halogen flame retardant. It acts as flame retardant by intumescence mechanism. When app-II 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 phosphateester, a carbon foam is built up on the surface and acts as an insulation layer.
Use:
In plastics (PP, PVC, PE, etc.) , polyester, rubber, and expandable fireproof coatings.
Packing: 25kg woven bag with plastic liner.
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