Ammonium polyphosphate -APP is a polyphosphate containing N and P . its general farmula is (NH4) + 2PnO3n+1 its is gradually hydrolyzed in to H2PO4 improve P efficiency avoid P losss
| Specification Grade Total Nitrogen by weight Minimum 14.21% Sodium as NaCl by weight on dry basis,Maximum 0.11% Matter insoluble in water by weight,Maximum 0.12% Water soluble phosphate(P2O5) by weight Maximum 65.18% Moisture by weight, Maximum 0.13% Degree of polymerization 8-20 Polymerization rate Minimum 95% pH (1 % solution) 6.0 |