Thermodynamics of the solvation of non-electrolytes in C8 monofunctional organic solvents

被引：4

作者：

Bernazzani, L ^{[1
]}

Bertolucci, M ^{[1
]}

Conti, G ^{[1
]}

Mollica, V ^{[1
]}

Tiné, MR ^{[1
]}

机构：

[1] Univ Pisa, Dipartimento Chim & Chim Ind, I-56126 Pisa, Italy

来源：

THERMOCHIMICA ACTA | 2001年 / 366卷 / 02期

关键词：

enthalpies of solution; enthalpies of solvation; octan-2-ol; hexylacetate; alcohols; ketones; ethers;

D O I：

10.1016/S0040-6031(00)00742-5

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Some results are reported concerning the enthalpies of solvation (Delta H-solv(o)) of some hydrocarbons (hexane, cyclohexane), ethers (tetrahydrofuran), ketones (cyclopentanone, pentan-3-one), alcohols (butan-1-ol. butan-2-ol). and water in octan-2-ol and hexylacetate. The Delta H-solv(o) values were calculated by combining the calorimetric heats of solution here determined with the known enthalpies of vaporisation. In the investigated solvents, the enthalpies of solvation become less negative going from alcohols to ketones to ethers and to hydrocarbons. As regards alcohols and ketones, the Delta H-solv(o) values are more differentiated in octan-2-ol than in hexylacetate. This reflects the different nature of the two solvents, amphiprotic the former and hydrogen bond acceptor the latter. The results are interpreted in terms of specific solute-solvent interactions. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：97 / 103

页数：7

共 15 条

[1] THERMODYNAMICS OF SOLUTE TRANSFER FROM WATER TO HEXADECANE [J].