Molecular formula: (NH4PO3)n n>1000
CAS No.: 68333-79-9
EINECS No.: 269-789-9
Model No.: CF-APP201
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:
|
Specification |
|
Value |
|
Appearance |
|
White powder |
|
P2O5 Content |
%(w/w) |
≥71 |
|
N Content |
%(w/w) |
>14 |
|
Decomposition Temperature |
°C |
>270 |
|
Density(25°C) |
g/cm3 |
~1.9 |
|
Solubility |
g/100ml H2O, 25°C |
~0.5 |
|
pH value |
(10% aqueous suspension) |
6.5±1 |
|
Viscosity |
(10%suspension, 25°C) |
<50 |
|
Monisture |
%(w/w) |
<0.5 |
|
|
|
|
|
Particle size(<50 μm) |
%(w/w) |
>97 |
Use:
In plastics(PP, PVC, PE, etc.), Polyester, Rubber, and Expandable fireproof coatings.
Packing: 25kg woven bag with plastic liner.
