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Updated: Aug 14, 2026

Accurate Determination of the Equilibrium Surface Tension Values with Area Perturbation Tests
Published on: August 30, 2019
Calculation and prediction of adsorption excesses on the ternary liquid mixture/air interface from surface tension
Grit Kalies1, Peter Bräuer, Annette Schmidt
1Wilhelm Ostwald Institute of Physical and Theoretical Chemistry, University of Leipzig, Linnéstrasse 2, Leipzig, D-04103, Germany. kalies@rz.uni-leipzig.de
Abstract:
The surface tensions of the n-propanol/ethylene glycol/water ternary mixture and its binary mixtures are measured at 293 K and described by mathematical functions. The experimental data and their descriptions are shown in the three-dimensional space by means of coordinate transformation. A thermodynamic model to calculate and predict ternary adsorption excess data on the ternary liquid mixture/air interface from surface tensions is presented. The calculated adsorption excess data in the ternary triangle are discussed.
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