聚磷酸铵（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. Uses: As a fire retardant it is mainly applied to anti-fire coatings, plastics, rubbers, plumber and paper etc. ; It can also used as a fertilizer. Packing and storage: Packed in 25 Kg net or 50 Kg net WPP/PE bags. It must be stored in places well ventilated and dry, and don