9.
Determination of pKa Values of Some 4-(Substituted
benzylamino)-4,5-Dihydro-1H-1,2,4-Triazol-5-one Derivatives
in Non – aqueous Solvents
Fatih Islamoglu*
Department of Chemistry, Faculty of Sciences and Arts, Rize
University, Rize 53100, Turkey.
ABSTRACT
Some 4-(substituted
benzylamino)-4,5-dihydro-1H-1,2,4-triazol-5-one derivatives were
titrated with tetrabutylammonium hydroxide (TBAH) in four
non-aqueous solvents (isopropyl alcohol, tert-butyl alcohol, N,N -
dimethylformamide and acetonitrile ), using potentiometric
method. The half neutralization potential values and the
corresponding pKa values were determined for all cases.
Keywords: Tetrabutylammonium
hydroxide, potentiometric method, half-neutralization potential.
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