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Author Ramanathan, R. M. A. ♦ Subramainan, A. ♦ Alwarappan, S. ♦ Vasudevan, T. ♦ Iyer, S. V. K.
Source CSIR-Central Electrochemical Research Institute
Content type Text
Publisher Central Electrochemical Research Institute
File Format PDF
Copyright Year ©2001
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Chemistry & allied sciences
Subject Keyword Electroorganic
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
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2001-01-01
Journal PeerReviewed