THERMOCHEMISTRY OF DISSOLUTION OF SODIUM ALKYLSULFONATES

被引：7

作者：

KALLAY, N ^{[1
]}

TOMIC, M ^{[1
]}

DUGANDZIC, V ^{[1
]}

机构：

[1] UNIV ZAGREB,FAC ORG & INFORMAT,VARAZDIN,YUGOSLAVIA

来源：

COLLOID AND POLYMER SCIENCE | 1990年 / 268卷 / 07期

关键词：

Dissolution; enthalpy; heat capacity change; sodium alkylsulfonates; surfactants;

D O I：

10.1007/BF01410411

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：

The effect of temperature on the solubility of ionic surfactants was interpreted in terms of standard enthalpy and entropy of dissolution at reference temperature by considering the change in the heat capacity. The significant value of the latter quantity causes the curvature of the function logarithm of equilibrium constant (or solubility) vs. the reciprocal thermodynamic temperature. The solubility data for several sodium n-alkylsulfonates, published by Saito, Moroi, and Matuura, were interpreted by nonlinear regression analysis. It was found that both the enthalpy and entropy of dissolution decrease with the chain length. The heat capacity increases in the course of the dissolution process. © 1990 Steinkopff.

引用

页码：683 / 686

页数：4

共 12 条

[1] SURFACE AND MICELLAR PROPERTIES OF SODIUM 1-ALKYL DECANE SULFONATES [J].