Enthalpies of glycylglycinate ion transfer from water to water-dimethyl sulfoxide solvent

被引：4

作者：

Naumov, V. V. ^{[1
]}

Isaeva, V. A. ^{[1
]}

Sharnin, V. A. ^{[1
]}

机构：

[1] Ivanovo State Univ Chem & Technol, Ivanovo 153000, Russia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2014年 / 88卷 / 03期

关键词：

enthalpy of resolvation; glycylglycinate ion; water-dimethyl sulfoxide solvents; DIMETHYLSULFOXIDE SOLVENTS; SOLVATION;

D O I：

10.1134/S0036024414030194

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 thermal effects of sodium glycylglycinate dissolution are determined calorimetrically at 298.15 K, and the enthalpies of glycylglycinate ion transfer from water to water-dimethyl sulfoxide solvent are calculated for compositions between 0.00 and 0.99 mole fractions of dimethyl sulfoxide. It is shown that when the concentration of the nonaqueous component is increased, the endothermicity of glycylglycinate ion transfer in the solution is considerably enhanced, weakening the solvation of anions.

引用

页码：433 / 435

页数：3

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