Osmotic and activity coefficients of short-chain alkyl benzene sulfonates by vapor pressure osmometry

被引：9

作者：

Wagle, Vikrant B. ^{[1
]}

Gaikar, Vilas G. ^{[1
]}

机构：

[1] Univ Bombay, Inst Chem Technol, Bombay 400019, Maharashtra, India

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2006年 / 51卷 / 03期

关键词：

D O I：

10.1021/je050348f

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Osmotic coefficients phi for aqueous solutions of sodium salts of n-butyl benzene sulfonate (NaNBBS), isobutyl benzene sulfonate (NaIBBS), tert-butyl benzene sulfonate (NaTBBS), n-propyl benzene sulfonate (NaPBS), ethyl benzene sulfonate (NaEBS), and p-toluene sulfonate (NaPTS) have been determined as a function of their molality m at 40 degrees C, 45 degrees C, and 50 degrees C by vapor pressure osmometry. Plots of phi versus 1/m show breaks yielding minimum hydrotropic molality (MHM) of the six hydrotropes. Burchfield and Woolley's model of micelle formation of ionic surfactants gives an apt representation of the experimental data.

引用

页码：886 / 891

页数：6

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