Analysis of Activity Coefficients in Aqueous Solutions of Alkali Metal Bromides Based on Dielectric Properties

I. Yu. Shilov; Шилов И. Ю.; A. K. Lyashchenko; Лященко А. К.

doi:10.31857/S0044457X23600056

Analysis of Activity Coefficients in Aqueous Solutions of Alkali Metal Bromides Based on Dielectric Properties

作者: Shilov I.Y.¹, Lyashchenko A.K.²
隶属关系:
1. Chemistry Department, Moscow State University
2. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
期: 卷 68, 编号 7 (2023)
页面: 961-964
栏目: ФИЗИКОХИМИЯ РАСТВОРОВ
URL: https://journals.rcsi.science/0044-457X/article/view/136375
DOI: https://doi.org/10.31857/S0044457X23600056
EDN: https://elibrary.ru/RIHQHN
ID: 136375

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详细
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详细

Extended Debye–Hückel (EDH) theory was used to calculate activity coefficients in aqueous solutions of alkali-metal bromides at 298 K from experimentally determined values of their static permittivities. Calculations with non-optimized model parameters fit the nonmonotonic concentration-dependent trend of the activity coefficients and the cation radius–dependent trend of the activity coefficients. The latter is explained by hydration weakening and ion association strengthening in response to increasing cation radius in the salt series.

关键词

electrolyte solution, dielectric permittivity, ion association, hydration

作者简介

I. Shilov

Chemistry Department, Moscow State University

Email: ignatshilov@mail.ru
119991, Moscow, Russia

A. Lyashchenko

Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

编辑信件的主要联系方式.
Email: ignatshilov@mail.ru
119991, Moscow, Russia

参考

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