Shifang Anda Chemicals Co., Ltd.
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  • Contact Person : Mr. Owen Johnny
  • Company Name : Shifang Anda Chemicals Co., Ltd.
  • Tel : 86-838-8462999
  • Fax : 86-838-8462555
  • Address : Sichuan,Shifang,Group 3,Nongke Village,Nanquan Town
  • Country/Region : China
  • Zip : 618413

Ammonium polyphosphate(APP)

Ammonium polyphosphate(APP)
Product Detailed
Related Categories:Phosphate
quality materials ,good contral of production,quality products

Ammonium polyphosphate(Phase II) is a non-halogen flame retardant. It acts as flame retardant by intumescence mechanism. When APP-II is exposed to fire or heat, it decomposes to polymeric phosphate acid and ammonia. The polyphosphoric acid reacts with hydroxyl groups to form a nonstable phosphateester. Following dehydration of the phosphateester, a carbon foam is built up on the surface and acts as an insulation layer.Specification :

Specification

Value

Appearance

White powder

P Content                     

%(w/w)

≥31

N Content                          

%(w/w)

>14

Decomposition Temperature

¡æ

>270

Density(25¡æ)

g/cm3

~1.9

Solubility

g/100ml H2O, 25¡æ

~0.5

pH value

( 10% aqueous suspension )

5.5-7.5

Viscosity

(10%suspension, 25oC)

<100

Monisture

%(w/w)

<0.25

Average particle size

µm

~15

Particle size(<50 µm)

%(w/w)

>97

Use :In plastics(PP, PVC, PE, etc. ), Polyester, Rubber, and Expandable fireproof coatings.Packing : 25kg woven bag with plastic liner.

Ammonium polyphosphate(APP)



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