NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.12 [2005] >
IJCT Vol.12(1) [January 2005] >


Title: Mechanistic studies of saponification of some mono- and di-esters of carboxylic acids through iso-kinetic relationships (ΔHvs. ΔS) in protic and aprotic solvent systems
Authors: Rao, B M
Gajanan, K
Keywords: Saponification
monoesters
diesters
mechanism
Issue Date: Jan-2005
Publisher: CSIR
IPC CodeC07C 27/02
Abstract: The mechanism of saponification of structurally related and industrially important mono- and diesters in protic and aprotic solvent systems have been investigated. Time ratio method and Swain's standard data for series first order reactions have been utilized for the evaluation of rate data and thermodynamic parameters viz. ΔE, -ΔH, ΔG, ΔS and logA for the steps which involve the competitive and consecutive saponification reactions. Further, the enthalpy-entropy correlations are used to establish the plausible mechanism of saponification process for the esters. Comparative study of the slopes of linear plots (ΔHvs. ΔS) reveal that dilaurates undergo faster saponification process than distearates and oleostearates irrespective of any solvent sytems. The experimental plots (ΔHvs. ΔS) support a faster saponification process of mono esters than diesters in all the protic and aprotic solvent systems studied.
Page(s): 43-49
ISSN: 0975-0991 (Online); 0971-457X (Print)
Source:IJCT Vol.12(1) [January 2005]

Files in This Item:

File Description SizeFormat
IJCT 12(1) 43-49.pdf174.28 kBAdobe PDFView/Open
 Current Page Visits: 555 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 558968 since 06-Feb-2009  Last updated on 30-Jul-2014Webmaster: nopr@niscair.res.in