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El-Naggar GA. First and second dissociation constants and related thermodynamic functions of adipic acid in various binary methanol/solvent systems. Talanta. 1998;47(4):1013-20doi: 10.1016/s0039-9140(98)00183-0.
El-Naggar, G. A. (1998). First and second dissociation constants and related thermodynamic functions of adipic acid in various binary methanol/solvent systems. Talanta, 47(4), 1013-20. https://doi.org/10.1016/s0039-9140(98)00183-0
El-Naggar, G A. "First and second dissociation constants and related thermodynamic functions of adipic acid in various binary methanol/solvent systems." Talanta vol. 47,4 (1998): 1013-20. doi: https://doi.org/10.1016/s0039-9140(98)00183-0
El-Naggar GA. First and second dissociation constants and related thermodynamic functions of adipic acid in various binary methanol/solvent systems. Talanta. 1998 Nov;47(4):1013-20. doi: 10.1016/s0039-9140(98)00183-0. PMID: 18967405.
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Talanta. 1998 Nov;47(4):1013-20. doi: 10.1016/s0039-9140(98)00183-0.

First and second dissociation constants and related thermodynamic functions of adipic acid in various binary methanol/solvent systems.

Talanta

G A El-Naggar

Affiliations

  1. Chemistry Department, Faculty of Education, (Damanhour Branch) Alexandria University, P.O. Box 426 Ibrahimia, Alexandria 21321, Egypt.

PMID: 18967405 DOI: 10.1016/s0039-9140(98)00183-0

Abstract

The First and second dissociation constants of adipic acid were determined by EMF measurements in water/methanol mixtures with 0, 30, 50 and 70 wt% organic cosolvent. Measurements were made at four different temperatures (ranging from 30 to 60 degrees C) using the cell: glass electrode/HCL (m(1)), H(2)L (m(2)), Na(2)CO(3) (m(3))/AgCl ((S)), Ag. The computations of these dissociation constants were based on the method of successive approximation by means of basic programmes. The thermodynamic properties (DeltaG degrees , DeltaH degrees and DeltaS degrees ) for first and second dissociation reactions of the acid under study, were computed, analyzed and discussed in terms of solute-solvent interactions.

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