Calculation and prediction of adsorption excesses on the ternary liquid mixture/air interface from surface tension measurements.
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.
Kalies
Grit
G
Wilhelm Ostwald Institute of Physical and Theoretical Chemistry, University of Leipzig, Linnéstrasse 2, Leipzig, D-04103, Germany. kalies@rz.uni-leipzig.de
Bräuer
Peter
P
Schmidt
Annette
A
Messow
Ulf
U