Surface properties of diluted solutions of cyclohexanol and cyclopentanol in ethylene glycol.
The surface tension, sigma, of dilute solutions of cyclohexanol and cyclopentanol in ethylene glycol was measured in the temperature range between 293.15 and 323.15 K by means of the ring detachment method. The surface entropies and enthalpies were calculated. The surface excess values were obtained using the Gibbs equation. The surface tension data were analyzed using the extended Langmuir (EL) model and the surface composition were obtained from this model. It was shown that clathrate-like solvates (hydrophobic-like solvation) are forming in the dilute solution of cyclohexanol in ethylene glycol.
Azizian
Saeid
S
Department of Chemistry, Faculty of Science, Bu-Ali Sina University, Hamadan, Iran. sazizian@basu.ac.ir
Bashavard
Nowrouz
N