CAS No.    

68333-79-9

        Product name         

APP

Chemical name

 Ammonium Polyphosphate

Molecular Formula

(NH₄PO₃)_n

Structural Formula

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.

Specification

Name

Unit

APP101

APP103 

P

%

27.0-29.0 

17-19

19-21

Water solubility

g/100cm³

water

≤0.2 

----

----

PH Value

----

7.0-9.0 

----

----

Particle size

μm

≤15

≤15

20-30

20-30

Thermal decomposition

ºC

≥280 

≥280 

≥240

≥240