polyphosphoric acid polyphosphoric acid 115Content: 95%,105%,115% Properties:Clear colorless viscous liquid, deliquescent, soluble in water with ... of Analysis Unit95% PPA105% PPA115% PPA1PPA%≥95.0≥105.0≥115.02P2O5%≥68.5≥76.0≥83.33Chloride as Cl%≤0 ... .0005≤0.0005≤0.00059ColorApha≤30≤30≤40 polyphosphoric acid 115