Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Solid Vapor Pressure and Enthalpy of Sublimation for Perfluorooctanoic Acid

Barton, C. A.[Catherine A.], Botelho, M. A.[Miguel A.], Kaiser, M. A.[Mary A.]
J. Chem. Eng. Data 2008, 53, 4, 939-941
ABSTRACT
A modified gas saturation method was used to determine the solid vapor pressure of perfluorooctanoic acid (PFOA) at ambient temperatures. Measurements were made over the temperature range from (25 to 45) deg C. Pressures ranged from (5.2 to 40.7) Pa. The enthalpy of sublimation was calculated as 88.9 kJ * mol-1.
Compounds
# Formula Name
1 C8HF15O2 pentadecafluorooctanoic acid
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • Vapor or sublimation pressure, kPa ; Crystal
  • Temperature, K; Crystal
  • Crystal
  • Gas
  • Transpiration method
  • 3