Jayalakshmi, M. and Muralidharan, V.S. (1998) Correlation between structure and inhibition of organic compounds for acid corrosion of transition metals. Indian Journal of Chemical Technology, 05 (01). pp. 16-28. ISSN 0971-457X

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In acid media, the corrosion inhibition offered by ethanol amines, benzoic acids, acetylinic alcohols for iron and nickel was investigated. These molecules absorbed on the metal surface and offered inhibition. A correlation between inhibition and electronic configuration of the molecules was attempted. In benzoic acids, the anchoring group is the benzene ring and the electron delocalization in the aromatic ring played a crucial role in the surface chelate formation. In the case of amines, the inhibition takes place due to absorption via lone pair of electrons on the nitrogen atoms. Acetylinic alcohols offered inhibition by accepting electrons from the vacant ‘d’ orbitals of the transition metals. On prolonged exposure in acid medium they form thick polymeric film on the metals thus offering inter-phase inhibition

Item Type: Article
Subjects: Electroinorganic
Corrosion Science and Engineering
Depositing User: ttbdu cecri
Date Deposited: 04 May 2012 09:54
Last Modified: 04 May 2012 09:54
URI: http://cecri.csircentral.net/id/eprint/2527

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