Polyphosphoric acid PPA 115
Polyphosphoric acid PPA 115
PPA 115 is a good solvent for many organic compounds and has been used extensively in organic synthesis. It is one of the most effective reagents for carrying out acetylation, alkylation, cyclization, and acid-catalyzed reactions. It is used in a variety of reactions such as dehydrations, rearrangements, and synthesis of nitrogen containing heterocycles.
Features & Benefits
Applications
Fine chemicals, pharmaceuticals and petrochemical synthesis agents
Production of phosphate esters
Phosphate Esters with a high monoester content (RH2PO4).
Fire resistant polyurethane foams
Phosphorus based polyols can be prepared from polyphosphoric acids and polyhydroxy compounds.
Bitumen and asphalt
Widely used to improve the performance of bitumen and asphalt. Asphalt binders can been chemically modified with
polyphosphoric acid to improve high temperature rheological properties without adversely affecting low temperature
rheological properties.
Metal treatment
Descaling and brightening of metal surfaces
Properties
Property | Nominal Value | Unit |
Appearance | Colorless viscous liquid | |
Solubility | Insoluble in hydrocarbons and halogenated hydrocarbons | |
P2O5 content | 82.5 – 83.5 | % |
Hazen color value | max. 50 | # |
Density at 20 °C | 2.03 – 2.06 | g/ml |
Arsenic content | max. 85 | ppm |
Iron content | max. 85 | ppm |
Heavy metals content (as Pb) | max. 85 | ppm |
Viscosity at 25 °C / 80 °C | 6500 / 600 | cSt |
Ortho | 4 – 6 | % |
Pyro | 14 – 18 | % |
Tri | 15 – 19 | % |
Tetra | 15 – 19 | % |
Higher | 40 – 50 | % |