4.1 Article

FORMATION OF AZEOTROPES FROM THE STANDPOINT OF SOLVATION THERMODYNAMICS

期刊

QUIMICA NOVA
卷 45, 期 3, 页码 292-296

出版社

SOC BRASILEIRA QUIMICA
DOI: 10.21577/0100-4042.20170824

关键词

Margules equation; liquid-vapour equilibrium; Redlich-Kister expansion; infinity dilution activity coefficient

向作者/读者索取更多资源

This study used a regular solution model to explain the formation conditions of azeotropes by deriving a mathematical expression.
This deviation is expressed by the activity coefficient of each component. However, the physical origin of this behavior is not well quantified in terms of molecular interactions. In this work, a regular solution model was used, relating the beta parameter to the solvation free energy of pure liquids in themselves and in the other component. A mathematical expression was derived that indicates when an azeotrope is formed. This equation shows that the greater the difference in vapour pressure between components, the greater the solvation difference of each liquid in itself and in the other component is needed to form the azeotrope. A set of 10 mixtures were randomly chosen and investigated as a test, and the equation worked in all cases.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.1
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据