An analysis of electrical conductances of aqueous solutions of polybasic organic acids. Benzenehexacarboxylic (mellitic) acid and its neutral and acidic salts

Alexander Apelblat; Marija Bešter-Rogač; Josef Barthel; Roland Neueder

doi:10.1021/jp057371s

An analysis of electrical conductances of aqueous solutions of polybasic organic acids. Benzenehexacarboxylic (mellitic) acid and its neutral and acidic salts

Alexander Apelblat, Marija Bešter-Rogač, Josef Barthel, Roland Neueder

Department of Chemical Engineering

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

21 Scopus citations

Abstract

A general approach is proposed to analyze electrical conductivities in aqueous solutions of polybasic organic acids. Experimental conductivities are examined in the context of dissociation and hydrolysis reactions by applying the Quint-Viallard conductivity equations and the Debye-Hückel equations for activity coefficients. The proposed numerical procedure is illustrated by the case of benzenehexacarboxylic (mellitic) acid and its neutral and acidic salts. From conductivity measurements of mellitic acid and its salts, performed in dilute aqueous solutions in the 278.15-308.15 K temperature range, the limiting conductances of mellitic anions, λ⁰(1/jH_6-jMel ^-j, T), j = 1, 2, 3, 4, 5, 6 are determined.

Original language	English
Pages (from-to)	8893-8906
Number of pages	14
Journal	Journal of Physical Chemistry B
Volume	110
Issue number	17
DOIs	https://doi.org/10.1021/jp057371s
State	Published - 4 May 2006

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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10.1021/jp057371s

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abstract = "A general approach is proposed to analyze electrical conductivities in aqueous solutions of polybasic organic acids. Experimental conductivities are examined in the context of dissociation and hydrolysis reactions by applying the Quint-Viallard conductivity equations and the Debye-H{\"u}ckel equations for activity coefficients. The proposed numerical procedure is illustrated by the case of benzenehexacarboxylic (mellitic) acid and its neutral and acidic salts. From conductivity measurements of mellitic acid and its salts, performed in dilute aqueous solutions in the 278.15-308.15 K temperature range, the limiting conductances of mellitic anions, λ0(1/jH6-jMel -j, T), j = 1, 2, 3, 4, 5, 6 are determined.",

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An analysis of electrical conductances of aqueous solutions of polybasic organic acids. Benzenehexacarboxylic (mellitic) acid and its neutral and acidic salts. / Apelblat, Alexander; Bešter-Rogač, Marija; Barthel, Josef et al.
In: Journal of Physical Chemistry B, Vol. 110, No. 17, 04.05.2006, p. 8893-8906.

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

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AU - Neueder, Roland

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AB - A general approach is proposed to analyze electrical conductivities in aqueous solutions of polybasic organic acids. Experimental conductivities are examined in the context of dissociation and hydrolysis reactions by applying the Quint-Viallard conductivity equations and the Debye-Hückel equations for activity coefficients. The proposed numerical procedure is illustrated by the case of benzenehexacarboxylic (mellitic) acid and its neutral and acidic salts. From conductivity measurements of mellitic acid and its salts, performed in dilute aqueous solutions in the 278.15-308.15 K temperature range, the limiting conductances of mellitic anions, λ0(1/jH6-jMel -j, T), j = 1, 2, 3, 4, 5, 6 are determined.

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An analysis of electrical conductances of aqueous solutions of polybasic organic acids. Benzenehexacarboxylic (mellitic) acid and its neutral and acidic salts

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