Effect of ultrasound on ester hydrolysis in aqueous ethanol

Authors
Tuulmets, A Salmar, S
Citation
A. Tuulmets et S. Salmar, Effect of ultrasound on ester hydrolysis in aqueous ethanol, ULTRASON SO, 8(3), 2001, pp. 209-212
Citations number
21
Categorie Soggetti
Chemistry
Journal title
ULTRASONICS SONOCHEMISTRY
ISSN journal
13504177 → ACNP
Volume
8
Issue
3
Year of publication
2001
Pages
209 - 212
Database
ISI
SICI code
1350-4177(200107)8:3<209:EOUOEH>2.0.ZU;2-I
Abstract
Kinetics of the acid-catalyzed hydrolysis of ethyl acetate in ethanol-water binary solutions were investigated without sonication and under ultrasound at 22 kHz. Rate enhancements by 1.03-2.4 times were found with a minimum a t 18 wt.% and a maximum at 45 wt.% of ethanol. The results suggest that ult rasonic acceleration of the reaction may be interrelated to the perturbatio n of the molecular structure of the binary solvent. (C) 2001 Elsevier Scien ce B.V. All rights reserved.