Polyphosphoric Acid: abbreviatin as PPASynonyms: superphosphoric acid, multiphosphoric acid Chemical Formula: Hn+2PnO3n+1 Product description: colorless sticky liquid, easy to air stack, not crystallize, corrosive, compatible with water, hydrolyzed into ortho-phosphoric acid. There are two kinds of polyphosphoric acid which produce in large capacity, one is 105%H3PO4(P2O576.0%), another one is 115%H3PO4(P2O583.2%). Usage: PPA can be widely used in pharmaceutical, perfumery, leather and chemical industry. It also can be used as catalyst in organic synthesis , petroleum chemical. Packaging and transport caution:  40kg/drum, 1000L IBC,Packaging can be according to the requirement of client.,Second grade inorganic and acidic corrosive.,Hazard code is 93007.,Hazard symbol should be available.