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Ammonium Polyphosphate ammonium polyphosphate flame retardant
Flame retardant ammonium polyphosphate
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 phosphate ester. Following dehydration of the phosphate ester, a carbon foam is built up on the surface and acts as an insulation layer.
Specification:
Specification |
Value |
TF-FR201 |
|
Appearance |
White powder |
P2O5 (w/w) |
≥71% |
N Content (w/w) |
≥14% |
Decomposition Temperature (TGA, onset) |
>275℃ |
Solubility (g/100ml water , at 25ºC) |
<0.5 |
pH value ( 10% aqueous suspension ) |
6.5-7.5 |
Viscosity (10% aqueous suspension, at 25℃) |
<20 |
Moisture (w/w) |
<0.25% |
Average Particle size |
10µm |
Applications:
1. Used to prepare many kinds of high-efficiency intumescent coating, the flameproof treatment 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.
CAS NO:68333-79-9
CAS NO:68333-79-9
CAS NO:68333-79-9
CAS NO:68333-79-9
CAS NO:68333-79-9
CAS NO:68333-79-9
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