Author/Authors :
Ertokuş, Güzide Pekcan Süleyman Demirel University - Faculty of Arts and Science - Department of Chemistry, TURKEY , Aktaş, A. Hakan Süleyman Demirel University - Faculty of Arts and Science - Department of Chemistry, TURKEY
Title Of Article :
Determination of the Dissociation Constant of Some Substituted Phenols by Potentiometric Method in Acetonitrile-Water Mixtures
Abstract :
The dissociation constants of phenol, 2−methylphenol, 3−methylphenol, 4−methylphenol, and 4−ethylphenol have been determined by potentiometric titration in a electrochemical cell with glass electrode at 25 oC in water and in the mixtures of acetonitrile and water where the following volume fractions (before mixing) of acetonitrile were used: 0.10, 0.20, and 0.30. The ionic strength of the solutions was adjusted to be 0.1 mol dm−3 using KCl. The dissociation constants were calculated by using the commercial Hyperquad 2008 program. The obtained results are in good concordance withliterature values.
NaturalLanguageKeyword :
Phenols , acid dissociation constant , potentiometric method
JournalTitle :
Süleyman Demirel University Faculty of Arts and Science Journal of Science
