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Ammonium Polyphosphate

(APP)


Ammonium Polyphosphate (APP) is used as halogen-free flame retardant.  It is colorless, non-hydroscopic and non-flammable.  APP is widely used in intumescent coatings, adhesives and sealants, polyurethane foams, thermoplastics, epoxy, polyester,  wood, paper, etc.

Typical Properties:

Grade P-3114 P-2423 P-2816 P-2912
Crystal Type II II II I
N >1000 >1000 >1000 >50
Phosphate Content(%) 31.0-32.0 24.0-25.0 28 29-30
Nitrogen (%) 14.0-15.0 23.0-24.0 16-18 12
PH 5.5-5.7 8.0-9.0 5.5-7.5 5.5-6.5
Viscosity mPa*s 100 max      
Moisture (%) max 0.25 0.3 0.25  
Solubility In Water 0.5% 0.3 0.08  
Decomposition 275<C 275<C 275<C 250<C
Average particle size µm 15 15 18  

Packing: 25 kg bags, 40 bags per pallet, or 1000 kg super sacks.


Links for Flame Retardants:

    Antimony Trioxide, Brominated Flame Retardants, Sodium Antimonate, Aluminum Hydroxide

    Magnesium Hydroxide, Zinc Borate, Zinc Stannate, Zinc Hydroxystannate

    Ammonium Polyphosphate, Isopropylated Triaryl Phosphates

Links for related products:

   Antioxidants, Colors, Titanium Dioxide, Optical Brighteners

 

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Last modified: 12/17/08