University Chemistry ›› 2015, Vol. 30 ›› Issue (1): 82-88.doi: 10.3866/PKU.DXHX20150117

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Sufficient Conditions for Existence of the Azeotropic Point

Liang Yanyu   

  1. Department of Chemistry, Tsinghua University, Beijing 100084, China
  • Published:2015-02-25


Starting from the saturated vapor pressure of pure liquid and the Henry constant, this article discusses the sufficient conditions of the existence of the azeotrope point in two-component liquid-vapor phase diagrams. Furthermore, the conclusion is illustrated by examples, combined with the physical meaning of these constants.

Key words: Two-component liquid-vapor phase diagram, Azeotrope point, Henry constant, Saturated vapor pressure of pure liquid, Scaled particle theory


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