Kinetic Study of Solvent Effect on Alkali catalysed Hydrolysis of Dimethyl Phthalate in Aquo-dioxane, Aqua-acetone and Aquo - DMSO Media
| Main Authors: | VIBHA SRIVASTAVA, R. I. SINGH, S. B. SINGH, PHANINDRA PRASAD, LALLAN SINGH |
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| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 1990
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/6202752 |
Daftar Isi:
- Department of Chemistry, Patna University, Patna-800 005 Manuscript received 18 July 1988, revised 1 February 1990, accepted 7 May 1990 A kinetic study of solvent effect on alkali —catalysed hydrolysis of dimethyl phthalate has been made in aquo-dioxane, aquo-acetone and aquo-DMSO solvent mixtures at different temperatures. The first dissociation constant value, evaluated by the method of French, was found to decrease with increasing amount of the organic co-solvent in the media like aquo-dioxane and aquo-acetone, while the same enhances in aquo-DMSO. The variation in rate as well as the activation parameters have been interpreted on the basis of specific solvation and the dielectric properties of the medium. The polarisation energy has been evaluated to test the polarisibility of the transition state.