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Licensed Unlicensed Requires Authentication Published by De Gruyter April 5, 2013

Micellization of Cetyltributylphosphonium Bromide in some Binary Aqueous Solvents Mixtures

Mizellbildung von Cetyltributylphosphoniumbromid in einigen binären wässrigen Lösungsmittelmischungen
  • S. Tiwari and K. K. Ghosh


The micellization behavior of cetyltributylphosphonium bromide (CTBPB) has been studied in aqueous ethylene glycol, dimethyl formamide, dimethyl sulfoxide, acetonitrile, 1-propanol, methanol, 1,4-dioxane and tetrahydrofuran mixtures (10–20% v/v) over the temperature range (300–320 K) by conductometry. The critical micelle concentration (cmc), extent of counterion binding (α) and thermodynamic parameters (ΔGom, ΔHom, ΔSom) for micellization process have been reported and discussed. The cmc values were found to increase with an increase in temperature and % of organic solvent.


Das Mizellbildungsverhalten von Cetyltributylphosphoniumbromid (CTBPB) wurde in wässrigen Ethylenglycol, Dimethylformamid, Dimethylsulfoxid, Acetonitril, 1-Propanol, Methanol, 1,4-Dioxan und Tetrahydrofuran-Mischungen (10–20% v/v) über einen Temperaturbereich von 300–320 K mittels Konduktometrie untersucht. Über die kritische Mizellbildungskonzentration (cmc), das Ausmaß der Gegenionenbindung (α) und die thermodynamischen Parameter (ΔGom, ΔHom, ΔSom) des Mizellbildungsprozesses wurde berichtet und diskutiert. Gefunden wurde eine Erhöhung der cmc-Werte bei steigender Temperatur und prozentualer Zunahme an organischem Lösungsmittel.

Kallol K. Ghosh, School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur (C.G.), 492010, India. E-Mail:

Dr. Kallol K Ghosh is presently a reader of physical chemistry at Pt. Ravishankar Shukla University, Raipur, India since 1998. He had been INSA/JSPS fellow at Seikei University, Tokyo, Japan and James Chair visiting fellow at St. Francis Xavier University, Antigonish, Canada. He has published 85 research papers. His research is focused on micellar catalysis, reaction mechanisms, hydroxamic acids and detoxification.

Mrs. Shuchi Tiwari is a Ph.D student of School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur, India.


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Received: 2008-04-15
Published Online: 2013-04-05
Published in Print: 2008-09-01

© 2008, Carl Hanser Publisher, Munich

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