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AKnoka® AP 400
Name Ammo
ium polyphosphate, APP Grades AK
oka™ AP 440 CAS 68333-79-9 Molecular Formula

Product Description

Application: AP 400 is mainly used in intumescent fireproof coating and thermosetting resins (such as polyurethane hard foam, UP resin, epoxy resin, etc.), and can also be used in the flame retardant of fibers, wood and rubber and plastic products. Due to its high molecular weight (n>1000) and high stability, APP can also be used as the main active ingredient in intumescent flame retardant thermoplastics, especially in the manufacture of electronic components to UL 94-V0 PP.

Packing: 25kg/bag, paper bag, PE liner.

Storage and Transportation: Lightly carry and keep dry.

Sports Event Norm
Phosphorus Content 31.0--32.0%
Nitrogen Content 14.0--15.0%
Water Solubility (25°C 10% Aqueous Suspension) ≤0.5  g/100ml      
PH Value 5.5--7.5
Particle Size (D50) ≈15μm
pyrolysis Temperature ≥270℃
Stickiness ≤50 mPa·s
Name Ammo
ium polyphosphate, APP Grades AK
oka™ AP 440 CAS 68333-79-9 Molecular Formula
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