Enthalpic interaction coefficients of glycine in aqueous sodium halide solutions at 298.15 K

被引：4

作者：

Yu, Li

Hu, Xin-Gen ^{[1
]}

Lin, Rui-Sen

机构：

[1] Wenzhou Univ, Chem & Mat Engn Coll, Wenzhou 325027, Peoples R China

[2] Shandong Univ, Key Lab Colloid & Interface Chem State Educ Minis, Jinan 250100, Peoples R China

[3] Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2007年 / 135卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

enthalpies of dilution; enthalpic pairwise interaction coefficients; glycine; aqueous sodium halide solutions;

D O I：

10.1016/j.molliq.2006.11.002

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 enthalpies of dilution have been measured for glycine in aqueous NaCl and NaBr solutions at 298.15 K using a flow microcalorimetry. The enthalpic interaction coefficients of glycine in the studied aqueous sodium halide solutions have been calculated according to the McMillanMayer model. Combining the previous studies for other sodium halides, the effect of the anions on enthalpic pairwise interaction coefficients between the glycine molecules has been rationalized in terms of the concepts of electrostatic interaction and structural interaction. The experimental data of the present work and those of the literature are combined, to put forward the general chemical principal, namely the more strongly solutes are solvated the less will be their tendency to interact with other solutes. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：96 / 104

页数：9

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