Features of the Temperature and Concentration Dependences of the Contraction of Aqueous Solutions of Ethanol

被引：15

作者：

Gotsul'skii, V. Ya. ^{[1
]}

Malomuzh, N. P. ^{[1
]}

Chechko, V. E. ^{[1
]}

机构：

[1] Mechnikov Natl Univ, UA-65026 Odessa, Ukraine

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2013年 / 87卷 / 10期

关键词：

water-ethanol solutions; contraction; singular point; hard-sphere mixture; LIGHT-SCATTERING; WATER;

D O I：

10.1134/S0036024413100087

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Temperature and concentration dependences of the contraction of aqueous solutions of ethanol are studied. It is shown that at a molar concentration of x = 0.077, the curves of the temperature dependences of contraction intersect at one point that is interpreted as the singular point of a water-ethanol solution. To reveal the role of intermolecular forces of attraction, our results are compared to the behavior of contraction for hard-sphere mixtures with varying ratios of their radii. The change in the total volume of the solution induced by the formation of hydrogen bonds is analyzed in detail.

引用

页码：1638 / 1644

页数：7

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