NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.17 [2010] >
IJCT Vol.17(6) [November 2010] >


Title: Conductometric studies on solvation behaviour of citric acid in water + methanol and water + ethanol mixtures at different temperatures
Authors: Bhat, J Ishwara
Manjunatha, M N
Keywords: Solvation behaviour
Specific conductance
Citric acid
Issue Date: Nov-2010
Publisher: NISCAIR-CSIR, India
Abstract: The paper reports the study on the effect of solvation of the species of citric acid in water + methanol and water + ethanol mixtures (v/v) on its conductivity behaviour as a function of temperature. The specific conductance was measured in the temperature range 283-313 K and the evaluated equivalent conductance was analyzed by Kraus-Bray and Shedlovsky models of conductivity. Limiting molar conductance (λ0m), dissociation constant (KC) and association constant (Ka) were evaluated for all solvent compositions. The limiting molar conductance was found to decrease with the increase in amount of co-solvent to water. Kc increased with increase in temperature till 60% methanol and 40% ethanol with a later decrease. Fuoss Accascina equation was applied and it was proved that the formation of ion pairs and scanty amount of ion triplets takes place in the system. Walden product, corrected Stokes radius (ri), thermodynamic parameters and solvation number also have been evaluated. Born relation of solvation was verified. These data were used to study the nature of ion-solvent and solvent-solvent interactions existing in the system under prevailing conditions.
Page(s): 462-467
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0991 (Online); 0971-457X (Print)
Source:IJCT Vol.17(6) [November 2010]

Files in This Item:

File Description SizeFormat
IJCT 17(6) 462-467.pdf90.17 kBAdobe PDFView/Open
 Current Page Visits: 875 
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: 583386 since 06-Feb-2009  Last updated on 05-Sep-2014Webmaster: nopr@niscair.res.in