The dependence of ionization constants of adipic acid on the temperature and solvent composition in dioxane-water system. | [Physical chemistry • 1993]

Author(s):

1. A. T. Mufti: National Centre Excellence Analytical Chemistry, Allama I. I. Kazi Campus, University of Sindh, Jamshoro, Pakistan

2. Saeeduddin: National Centre Excellence Analytical Chemistry, Allama I. I. Kazi Campus, University of Sindh, Jamshoro, Pakistan

3. K. M. Bhatti: National Centre Excellence Analytical Chemistry, Allama I. I. Kazi Campus, University of Sindh, Jamshoro, Pakistan

4. A. W. K. Khanzada: National Centre Excellence Analytical Chemistry, Allama I. I. Kazi Campus, University of Sindh, Jamshoro, Pakistan

Abstract:

The ionization constants of adipic acid in water from 25 °C to 50 °C at 5 °C intervals and in 10%, 20%, 30% and 40% v/v dioxane-water system at 25 °C have been determined potentiometrically. The influence of solvent composition and temperature on ionic equilibria of adipic acid has been studied. The ionization constants have been calculated by a computer program for overlapping pKa in GW-BASIC language which was written and developed in this centre. Significant influence of temperature and solvent composition on pKa values of adipic acid has been observed.

Page(s): 91-101

DOI: DOI not available

Published: Journal: Physical chemistry, Volume: 12, Issue: , Year: 1993

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