Adipic and malonic acid aqueous solutions: surface tensions and saturation vapor pressures

J Phys Chem A. 2007 Dec 20;111(50):12995-3002. doi: 10.1021/jp073731v. Epub 2007 Nov 29.

Abstract

The surface tension of adipic aqueous solutions was measured as a function of temperature (T=278-313 K) and adipic acid mole fraction (X=0.000-0.003) using the Wilhelmy plate method. A parametrization fitted to these data is presented. The evaporation rates of binary water-malonic and water-adipic acid droplets were measured with a TDMA technique at different temperatures (T=293-300 K) and relative humidities (58-80%), and the saturation vapor pressures of subcooled liquid malonic and adipic acids were derived from the data using a binary evaporation model. The temperature dependence of the vapor pressures was obtained as least-squares fits to the derived vapor pressures: ln(Psat,l) (Pa)=220.2389-22634.96/T (K)-26.66767 ln T (K) for malonic acid and ln(Psat,l) (Pa)=140.6704-18230.97/T (K)-15.48011 ln T (K) for adipic acid.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adipates / chemistry*
  • Least-Squares Analysis
  • Malonates / chemistry*
  • Solutions
  • Surface Tension
  • Temperature

Substances

  • Adipates
  • Malonates
  • Solutions
  • adipic acid
  • malonic acid