Dielectric properties, hydration and ionic association in binary and multicomponent formate water-salt systems

被引：13

作者：

Lileev, AS ^{[1
]}

Balakaeva, IV ^{[1
]}

Lyashchenko, AK ^{[1
]}

机构：

[1] Russian Acad Sci, NS Kurnakov Gen & Inorgan Chem Inst, Moscow 117907, Russia

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2000年 / 87卷 / 01期

关键词：

• This work was supported by the Russian Foundation of Basic Research (Grant no 98-03-32225);

D O I：

10.1016/S0167-7322(00)00127-6

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 complex dielectric permittivity of binary and multicomponent aqueous solutions of yttrium, barium and copper formates is investigated in the microwave range. The dielectric constant epsilon(s) and the parameters of the process of dielectric relaxation are calculated It is shown that the relative changes of epsilon(s) in a series of considered formate solutions are connected not only with hydration processes but also with association of Y3+ and Cu2+. In barium formate solutions the hydration interactions prevail. The features of the branches of the solubility isotherm for ternary water-salt systems are displayed in the concentration dependencies of the dielectric characteristics of the saturated multicomponent solutions. It is shown that the hydration and the ion-ion interaction determine a type of solubility isotherm in these water-salt systems. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：11 / 20

页数：10