A conductivity study of unsymmetrical 2:1 Type "complex ion" electrolyte: Cadmium chloride in dilute aqueous solutions

Alexander Apelblat; Miguel A. Esteso; Marija Bešter-Rogač

doi:10.1021/jp4024074

A conductivity study of unsymmetrical 2:1 Type "complex ion" electrolyte: Cadmium chloride in dilute aqueous solutions

Alexander Apelblat, Miguel A. Esteso, Marija Bešter-Rogač

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Systematic and precise measurements of electrical conductivities of aqueous solutions of cadmium chloride were performed in the 2 × 10^-5 - 1 × 10^-2 mol·dm^-3 concentration range, from 278.15 to 313.15 K. Determined conductances were interpreted in terms of molecular model which includes a mixture of two 1:1 and 2:1 electrolytes. The molar limiting conductances of λ⁰(CdCl⁺, T) and λ⁰(1/2Cd²⁺, T), the equilibrium constants of CdCl⁺ formation K(T) and the corresponding standard thermodynamic functions were evaluated using the Quint-Viallard conductivity equations, the Debye-Hückel equations for activity coefficients and the mass-action equation. An excellent agreement between calculated and experimental conductivities was reached.

Original language	English
Pages (from-to)	5241-5248
Number of pages	8
Journal	Journal of Physical Chemistry B
Volume	117
Issue number	17
DOIs	https://doi.org/10.1021/jp4024074
State	Published - 2 May 2013

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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abstract = "Systematic and precise measurements of electrical conductivities of aqueous solutions of cadmium chloride were performed in the 2 × 10-5 - 1 × 10-2 mol·dm-3 concentration range, from 278.15 to 313.15 K. Determined conductances were interpreted in terms of molecular model which includes a mixture of two 1:1 and 2:1 electrolytes. The molar limiting conductances of λ0(CdCl+, T) and λ0(1/2Cd2+, T), the equilibrium constants of CdCl+ formation K(T) and the corresponding standard thermodynamic functions were evaluated using the Quint-Viallard conductivity equations, the Debye-H{\"u}ckel equations for activity coefficients and the mass-action equation. An excellent agreement between calculated and experimental conductivities was reached.",

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AU - Apelblat, Alexander

AU - Esteso, Miguel A.

AU - Bešter-Rogač, Marija

PY - 2013/5/2

Y1 - 2013/5/2

N2 - Systematic and precise measurements of electrical conductivities of aqueous solutions of cadmium chloride were performed in the 2 × 10-5 - 1 × 10-2 mol·dm-3 concentration range, from 278.15 to 313.15 K. Determined conductances were interpreted in terms of molecular model which includes a mixture of two 1:1 and 2:1 electrolytes. The molar limiting conductances of λ0(CdCl+, T) and λ0(1/2Cd2+, T), the equilibrium constants of CdCl+ formation K(T) and the corresponding standard thermodynamic functions were evaluated using the Quint-Viallard conductivity equations, the Debye-Hückel equations for activity coefficients and the mass-action equation. An excellent agreement between calculated and experimental conductivities was reached.

AB - Systematic and precise measurements of electrical conductivities of aqueous solutions of cadmium chloride were performed in the 2 × 10-5 - 1 × 10-2 mol·dm-3 concentration range, from 278.15 to 313.15 K. Determined conductances were interpreted in terms of molecular model which includes a mixture of two 1:1 and 2:1 electrolytes. The molar limiting conductances of λ0(CdCl+, T) and λ0(1/2Cd2+, T), the equilibrium constants of CdCl+ formation K(T) and the corresponding standard thermodynamic functions were evaluated using the Quint-Viallard conductivity equations, the Debye-Hückel equations for activity coefficients and the mass-action equation. An excellent agreement between calculated and experimental conductivities was reached.

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A conductivity study of unsymmetrical 2:1 Type "complex ion" electrolyte: Cadmium chloride in dilute aqueous solutions

Abstract

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