Potentiometric Determination of Protonation Constant of 4,5-Dimethyl-2-Hydroxy Acetophenone and its Oxime
| Main Authors: | (Mrs.) M. MITTAL, KEEMTI LAL, S. P. GUPTA |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 1980
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/6361817 |
Daftar Isi:
- Chemical Laboratories, D. N. College, l\Ieerut-250 002 Manuscript received 21 May 1979, accepted 30 November 1979 Protonation constant of 4,5-dimethyl-2-hydroxy acetophenone and its oxime has been determined in aqueous-dioxane (20 to 75% (v/v)) at different ionic strengths (0.01M to 0.1M NaClO4 ) and temperatures 20°, 30° & 40° potentiometrically. The value of change in free energy (∆G), enthalpy (∆ H) and entropy (∆S) have been calculated. The value of p\(K_m^H\) (minimum p\(K_1^H\) value at θ°) has been calculated from Harned's equation.