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Whitmer JK, Kiselev SB, Law BM. Adsorption at the liquid-vapor surface of a binary liquid mixture. J Chem Phys. 2005;123(20):204720doi: 10.1063/1.2128705.
Whitmer, J. K., Kiselev, S. B., & Law, B. M. (2005). Adsorption at the liquid-vapor surface of a binary liquid mixture. The Journal of chemical physics, 123(20), 204720. https://doi.org/10.1063/1.2128705
Whitmer, J K, et al. "Adsorption at the liquid-vapor surface of a binary liquid mixture." The Journal of chemical physics vol. 123,20 (2005): 204720. doi: https://doi.org/10.1063/1.2128705
Whitmer JK, Kiselev SB, Law BM. Adsorption at the liquid-vapor surface of a binary liquid mixture. J Chem Phys. 2005 Nov 22;123(20):204720. doi: 10.1063/1.2128705. PMID: 16351306.
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J Chem Phys. 2005 Nov 22;123(20):204720. doi: 10.1063/1.2128705.

Adsorption at the liquid-vapor surface of a binary liquid mixture.

The Journal of chemical physics

J K Whitmer, S B Kiselev, B M Law

Affiliations

  1. Department of Physics, Kansas State University, Manhattan, KS 66506-2601, USA.

PMID: 16351306 DOI: 10.1063/1.2128705

Abstract

In a binary liquid mixture, the component possessing the lowest surface tension preferentially adsorbs at the liquid-vapor surface. In the past this adsorption behavior has been extensively investigated for critical binary liquid mixtures near the mixture's critical temperature T(c). In this fluctuation-dominated regime the adsorption is described by a universal function of the dimensionless depth zxi where xi is the bulk correlation length. Fewer studies have quantitatively examined adsorption for off-critical mixtures because, in this case, one must carefully account for both the bulk and surface crossover from the fluctuation-dominated regime (close to T(c)) to the mean-field dominated regime (far from T(c)). In this paper we compare extensive liquid-vapor ellipsometric adsorption measurements for the mixture aniline+cyclohexane at a variety of critical and noncritical compositions with the crossover theory of Kiselev and co-workers [J. Chem. Phys. 112, 3370 (2000)].

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