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Ion Exchange Properties of Pyridinium Molybdoarsenate

✍ Scribed by Jain, Ajay K. ;Srivastava, Suresh K. ;Singh, Raj P. ;Agrawal, Sushma

Publisher
Blackwell Publishing
Year
2010
Tongue
English
Weight
304 KB
Volume
28
Category
Article
ISSN
0142-0356

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✦ Synopsis

Abstract

The ion exchange behaviour of pyridinium molybdoarsenate has been investigated with some uni‐ and bi‐valent cations. The slopes of the isotherms are widely different for various cations suggesting that separation of these ions is feasible. Barrer's equation has been applied to the exchange reaction and various thermodynamic parameters, viz. interaction energy between the ions on surface, thermodynamic equilibrium constant and free energy change for the exchange process, have been evaluated. This exchanger is found to be highly specific for Tl^+^ ions and can be used for its removal from mixtures of various uni‐ and bi‐valent cations.

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