Journal of Chemical and Pharmaceutical Research (ISSN : 0975-7384)

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Original Articles: 2015 Vol: 7 Issue: 4

Investigation and inhibition of aluminium corrosion in methane sulphonic acid solution by organic compound

Abstract

Corrosion control of metals is an important activity of technical, economical, environmental and aesthetical importance. The continuous search for better corrosion inhibitors, due to vast differences in the media encountered in industry remains a focal point in corrosion control. The use of organic compounds to inhibit corrosion has assumed great significance due to their application in preventing corrosion under various corrosive environments. The corrosion inhibition of aluminium by thiourea in 1 M MSA has been investigated by weight loss measurements and temperature effect. The experimental data complied with Temkins Adsorption isotherm and the values of activation energy and heat of adsorption obtained suggested that inhibitor molecules have been spontaneously adsorbed on the aluminium surface by physical adsorption mechanism.

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