Ammonium polyphosphate|APP|68333-79-9

Tongvo Chemicals can supply Ammonium polyphosphate ((NH4)3PO4) for flame retardant industry.

Title: Ammonium polyphosphate

Synonyms: APP
Formula: (NH₄)₃PO₄
CAS #: 68333-79-9, EC #: 269-789-9

Standard(s): HG/T 2770-2008

Grade: APP-0, APP-I, APP-II

Item	APP-0	APP-1	APP-2
Remark(s):	25Kgs/bag, in woven or kraft paper bags with inner bag , or as customer's requirements.
Apperance	white powder	white powder	white powder
P2O5 Content (% w/w)	71 ± 1	71 ± 1	69.5 min
N – Content (% w/w)	14 ± 1	14 ± 1	14.5 min
P – Content (% w/w)	-	-	30.0 min
pH	6~7	5.5~6	-
Water Solubility	<0.1 (g/110g 25°C)	<0.4 (g/110g 25°C)	0.9g/100ml (approx)
Density	1.9 (g/cm³)	1.9 (g/cm³)	1.9 (g/cm³)
Decomposition Temp	270°C	270°C	270°C (approx)
Degree of Polymerization	-	> 800	-
Water Content	-	-	1 % Max
Particle Size	< 500 mesh	< 500 mesh	25 µ max

Long-chain ammonium polyphosphate. The crystal modification is phase II. (n≥1500). It is non-flammable, largely insoluble in water, stable and compatible with some polymers.

Ammonium polyphosphate is an environmentally friendly halogen free flame retardant, which develops its effectiveness through phosphorus / nitrogen synergism.

ammonium polyphosphate is usually used with charring agent and foaming agent. The flame retardant treated material foams on exposure to flame. The carbon foam layer so formed protects the polymer through its heat-insulating effect.

Ammonium polyphosphate can be used with charring agent and foaming agent in the processing of the fire retardant treatment of PE/PP/PU materials, oxygen molecules material or high-grade intumescent fireproof materials ,which can provide good flame retardant efficiency .

Keep in cool dry place.

Air transportation: arranged as ordinary goods.

Harzards Identification & Classifications: N/A

24 months.