Derivation of the Butler equation from the requirement of the minimum Gibbs energy of a solution phase, taking into account its surface area

J. Korozs, G. Kaptay

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The Butler equation (on the equality of the partial surface tensions of the components of a solution) is derived in this paper from the general requirement that in equilibrium the Gibbs energy of the solution phase (taking into account also its surface area) must have a minimum value. This new derivation hopefully will increase the confidence of the scientific community in applying the Butler equation in further calculations of surface tension and surface adsorption (and also surface phase transition) of liquid solutions and in extending it to other interfaces.

Original languageEnglish
Pages (from-to)296-301
Number of pages6
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume533
DOIs
Publication statusPublished - Nov 20 2017

Keywords

  • Butler equation
  • Gibbs thermodynamics
  • Solutions
  • Surface adsorption
  • Surface tension

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

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