NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.49A [2010] >
IJC-A Vol.49A(10) [October 2010] >


Title: Thermodynamics and kinetics of ion exchange of a hybrid cation exchanger, zirconium diethylene triamine pentamethylene phosphonate
Authors: Patel, Parimal
Chudasama, Uma
Keywords: Ion exchange
Cation exchanger
Hybrid ion exchanger
Kinetics
Thermodynamics
Zirconium phosphonate
Issue Date: Oct-2010
Publisher: NISCAIR-CSIR, India
IPC CodeInt. Cl.9 B01J39/02
Abstract: A novel hybrid cation exchange material of the class of tetravalent metal acid salt, zirconium diethylene triamine pentamethylene phosphonate, has been synthesized by sol gel method. The material has been characterized by elemental analysis, FTIR, TGA and DSC studies, X-ray diffraction studies and SEM. Physico-chemical and ion exchange characteristics have also been determined. Chemical stability of the material has been assessed in various acids, bases and organic solvent media. The equilibrium exchange of Mg2+, Ca2+, Sr2+ and Ba2+ ions with the H+ ions contained in the ion exchanger has been studied at varying temperatures with constant ionic strength. On the basis of the exchange isotherms, various thermodynamic parameters such as equilibrium constant, standard Gibbs free energy, entropy and enthalpy and kinetic parameters such as self-diffusion coefficient, energy of activation and entropy of activation have been evaluated under the conditions favouring a particle diffusion-controlled mechanism.
Page(s): 1318-1324
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0975(Online); 0376-4710(Print)
Source:IJC-A Vol.49A(10) [October 2010]

Files in This Item:

File Description SizeFormat
IJCA 49A(10) 1318-1324.pdf208.59 kBAdobe PDFView/Open
 Current Page Visits: 651 
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: 585012 since 06-Feb-2009  Last updated on 17-Sep-2014Webmaster: nopr@niscair.res.in