ammonium polyphosphate phase II with epoxy treatment (APP-226)

Ammonium Polyphosphate phase II with epoxy resin treatment is a non-halogen flame retardant based on phosphorus/nitrogen synergism.  It is treated/coated by epoxy resin via a specialized method, and is free of formaldehyde.

Its solubility in water is very low and has less influence on polymers.  APP-226 is very suitable in epoxy resin, polyurethane, and textile coating systems.

25 kg woven bag with plastic liner; 500/1000 kg super sacks.

                                                                          Target Value               Typical Value

Appearance                                                       White powder              White powder

P Content % (w/w)                                            ≥ 29                             30

N Content % (w/w)                                           13 - 15                         14

Viscosity (10% aqueous, 25 C) mPa.s               ≤ 20                            10

pH value (10% aqueous)                                   6 – 8                            7

Average Particle Size (D50) um                        20 - 24                        22

Particle Size      <50 um % (w/w)                      ≥ 95                            98

                        >100 um % (w/w)                      ≤ 0.1                           0

Moisture Content % (w/w)                                ≤ 0.25                         0.10

Solubility in Water (g/100ml, 25C)                   ≤ 0.15                         0.10

Solubility in Water (g/100ml, 60C, 24h)           ≤ 1.0                           0.70

Molecular Formula: (NH4PO3)n         n>1000

CAS No.: 68333-79-9

EINECS No.: 269-789-9