Ramanathan, R.M.A. and Subramainan, A. and Alwarappan, S. and Vasudevan, T. and Iyer, S.V.K. (2001) The adsorption behaviour of ethanolamines in hydrochloric acid solution. Bulletin of Electrochemistry, 17 (1). 01-05. ISSN 0256-1654

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Abstract

The adsorption behaviour of mono, di and tri-ethanolamines on the mercury electrode from acidic solution have been studied using capillary electrometer. Thermodynamic parameters such as charge on the metal surface (q power M), surface excess of the organic molecule adsorbed (Torg), surface coverage and free energy of adsorption have been evaluated. Ethanolamines in acidic media are found to adsorb on the negatively charged mercury surface and are completely desorbed at more positive electrode charges. The order of adsorption among the ethanolamines is found to be ethanolamine > diethanolamine > triethanolamine. The order of adsorption resembles the order of their basicity. The adsorption of all these compounds are governed by Frumkin's adsorption isotherm

Item Type:	Article
Uncontrolled Keywords:	Ethanolamine; Adsorption; Adsorption isotherm; Electrocapillary
Subjects:	Electroorganic
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	06 Nov 2012 11:47
Last Modified:	06 Nov 2012 11:47
URI:	http://cecri.csircentral.net/id/eprint/1218

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