Ammonium polyphosphate halogen free fire retardant CAS NO.68333-79-9

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.

Ammonium polyphosphate decomposition temperature is 275℃.Fire resistance for fire retardant paint up to 60mins,90mins and 120mins. Ammonium polyphosphate is used in water based and solvent based fire retardant paint. 

Molecular formula: (NH4PO3) n n>1000
CAS No.: 68333-79-9
EINECS No.: 269-789-9
HS CODE: 28353990
Model No.: TF-FR201
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.
Specification:

Applications:
1. Used to prepare many kinds of high-efficiency intumescent coating, the flameprooftreatment for multistory building, ships, trains, cables, etc.
2. Used as the main flameproof additive for expanding-type flame retardant used in plastic, resin, rubber, etc.
3. Make into powder extinguishing agent to be used in large-area outfire for forest, oil field and coal field, etc.
4. In plastics (PP, PVC, PE, etc.), Polyester, Rubber, and Expandable fireproof coatings.
Packing: 25kg plastic woven bag with PE liner. 20mt/20'fcl without pallets, 18mt/20'fcl with pallets. Other packing as request.
Storage: in dry and cool place, keeping out of moisture and sunshine, shelf life two years.