Russian Journal of Physical Chemistry A

, Volume 89, Issue 2, pp 207–213 | Cite as

Particular points of water-alcohol solutions

  • V. Ya. Gotsulskiy
  • N. P. Malomuzh
  • V. E. Chechko
Physical Chemistry of Solutions


The paper discusses the physical nature of the nontrivial properties of aqueous alcohol solutions in a range of molar concentrations x ∼ 0.05. A particular point is determined based on analysis of the temperature and concentration dependences of contraction, which is the simplest thermodynamic characteristic of solutions. The occurrence of particular points in water-alcohol solutions is shown to be directly related to the structural features of water. The concentration-temperature dependence is plotted, where the contraction behavior of an aqueous ethanol solution demonstrates a structural feature of water. The formulas to find the concentration values at particular points are proposed.


aqueous alcohol solutions contraction particular point 


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Copyright information

© Pleiades Publishing, Ltd. 2015

Authors and Affiliations

  • V. Ya. Gotsulskiy
    • 1
    • 2
  • N. P. Malomuzh
    • 2
  • V. E. Chechko
    • 2
  1. 1.Taras Shevchenko Kiev National UniversityKievUkraine
  2. 2.Mechnikov Odessa National UniversityOdessaUkraine

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