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Ammonium Polyphosphate/High Molecular Ammonium Polyphosphate(n>1000)

Description:
Synonyms: APP
Formula: (NH4PO3)n
CAS NO: 269-789-9
Application: It can be used in expanding fireproof material, such as polyurethane, UP resin and epoxy resin. Also used in the retardant of fibre, wood and plastic. APP is main ingredient of expanding retardant thermoplastic because of its high molecular weight and good heat stabilization. Especially used in the PP achieving UL94-V0 for electronic unit.
Quality Standard:

P %（w/w） 31.0-32.0
N %（w/w） 14.0-15.0
Ph（10% suspension） 5.5-7.0
Moisture%(w/w) ≤0.25
Decomposed temp.on heat℃ ≥275
Density 25℃kg/L About 1.9
Bulk density 25℃kg/L About 0.7
Viscosity(25℃,10% suspension)mpa.s ≤100
Solubility （g/100cm3 water ） About 0.5
Grain size um　 About 15