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Specification | Industry standardHG/T2770-2008First quality | Guaranteed valueofour company |
Appearance | White powder | White powder |
P2O5 Content % | ≥68 | ≥69 |
N Content % | ≥13 | 14-15 |
Average polymerization degree n | ≥20 | ≥50 |
pH value | ( 1% aqueous suspension ) | 6-8 |
Particle size %(w/w) | <50µm | >95 |
Ammonium polyphosphate(APP) is an excellent, high-efficiency and nontoxic inorganic flame retardant, used as the necessary flame-proof additive for all kinds of expanding-type flameproof paint and flame retardant products. The polymerization degree of our ammonium polyphosphate(APP-I) is higher than 50; the solubility in water is lower than 2g in every 100ml water.
polyphosphoric acids ammonium salts