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E-Journal of Chemistry
Volume 4 (2007), Issue 1, Pages 137-144
http://dx.doi.org/10.1155/2007/789135

A Study of Substituted Aliphatic Sulphides on the Corrosion Behaviour of Zinc in Ammonium Chloride Solution

R. Venckatesh, P. S. Syed Shabudeen, and S. Gopal

Advanced Materials Research Laboratory, Kumaraguru College of Technology, Coimbatore-641 006, Tamilnadu, India

Received 7 September 2006; Revised 16 October 2006; Accepted 1 November 2006

Copyright © 2007 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Sulphur containing organic compounds decreases the corrosion rate by increasing the hydrogen over potential on zinc metal due to their electron donating groups. Their inhibiting effect was found to be associated with their adsorption on the active centers of the metal. The inhibition efficiencies of some aliphatic sulphides in ammonium chloride solution have been studied by weight loss studies, polarization and impedance measurements. The effect of substituent groups is correlated with their inhibition performance. These studies due to their relevance in Zn-Manganese dry batteries assume their importance.