Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

ABSTRACT

Accurate experimental data of vapor-liquid equilibria (VLE) are reported for the ternary system (1- pentanol + 2,2,4-trimethylpentane + heptane) and the binary system (2,2,4-trimethylpentane + heptane) at T = 313.15 K. An isothermal total pressure cell was used for measuring the VLE. The Barker s method for data reduction provided correlations for the excess Gibbs energy using the Margules equation for the binary system and the Wohl expansion for the ternary system. The Wilson, NRTL and UNIQUAC models were applied successfully to the binary and the ternary systems reported.