APP

Specification of Ammonium Polyphosphate – APP

CAS No.                                            : 68333-79-9

EINECS No.                                     : 269-789-9

Formula                                            : (NH4PO3)n

Appearance                                     : White, free flowing powder

Specification :

Phosphorus            (w/w)                         : 31.0 – 32.0 %

Nitrogen (w/w)                                 : 14.0 – 15.0 %

Water Content                                 : ≤0.25 %

Solubility in water                          : ≤0.50 %

(10% suspension)

Viscosity  (mpas)                            : ≤100

(25ºC, 10% suspension)

pH Value                                           : 5.5 – 7.5

Acid Number (mg KOH/g)            : ≤1.0

Average Particle Size (µm)           : 15

Particle Size                                     : ≤ 45 µm (m/m)        ≥ 96.0 %

> 100 µm (m/m)      ≤ 0.2 %

Weight Loss                                                :

            At 350ºC (w/w)                     : <  5.0 %

            At 450ºC (w/w)                     : <10.0 %

            At 550ºC (w/w)                     : <20.0 %