Email this article Analysis of Activity Coefficients in Aqueous Solutions of Alkali Metal Bromides Based on Dielectric Properties
- Authors: Shilov I.Y.1, Lyashchenko A.K.2
-
Affiliations:
- Chemistry Department, Moscow State University
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
- Issue: Vol 68, No 7 (2023)
- Pages: 961-964
- Section: ФИЗИКОХИМИЯ РАСТВОРОВ
- URL: https://journals.eco-vector.com/0044-457X/article/view/665230
- DOI: https://doi.org/10.31857/S0044457X23600056
- EDN: https://elibrary.ru/RIHQHN
- ID: 665230
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Abstract
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.
About the authors
I. Yu. Shilov
Chemistry Department, Moscow State University
Email: ignatshilov@mail.ru
119991, Moscow, Russia
A. K. Lyashchenko
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Author for correspondence.
Email: ignatshilov@mail.ru
119991, Moscow, Russia
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