... and reasonable price 4) Exporting to global AMMONIUM POLYPHOSPHATE (APP)Molecular formula: (NH4)n+2PnO3n+1CAS Number: 68333- ... into three types, i.e high polymerization APP, medium polymerization APP and low polymerization APP. The higher polymerization is, the less ... be divided into two type, namely crystalline APP and amorphorous APP. Crystalline APP is a water insoluble and long-chain polyphosphate ...