AMMONIUM POLYPHOSPHATE ( APP-` ) Molecular formula: : ( NH4) n+ 2PnO3n+ 1 Properties: As per the polymerization degree, APP has got three grades, i.e. high polymerization grade, medium polymerization grade and low polymerization grade, and as per the structure, it can be divided into crystalline product and amorphous product. The crystalline product has five varieties , namely from type I to type V. It is in white powder, not easily deliquescent, has got good compatibility with other auxiliaries, insoluble in water, odorless and poison-less. Its gravity is 2.3. Guaranteed Technical Specifications : Specifications TFAPP01 Appearance White powder P2O5 % e 69 N % e 14 PH Value 5.5-7.5 Solubility g/ 100ml( H2O, 25 ) 1.5 Average polymerization ( n) 100 Water % d 0.5 Size 200-325 mesh Uses: As a fire retardant it is mainly applied to anti-fire coatings, plastics, rubbers, plumber and paper etc. ; It can be also used as a fertilizer. Packing and storage: Packed in 25 Kg net WPP/ PE bags. It must be stored in places well ventilated and dry, and don' t store it in the open air.