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E-Journal of Chemistry
Volume 8, S1, Pages S358-S362
http://dx.doi.org/10.1155/2011/294792

Study on the Corrosion Kinetics of Iron in Acid and Base Medium

D. B. Patil1 and A. R. Sharma2

1Department of Chemistry, Institute of Science, Nagpur-440 001, India
2Department of Chemistry, Manoharbhai Patel Institute of Engineering and Technology, Gondia-441 614, India

Received 24 January 2011; Accepted 12 April 2011

Copyright © 2011 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

The kinetics of corrosion of iron in acid and base medium by weight loss method was investigated. The corrosion kinetics was studied in sulphuric acid, nitric acid and potassium hydroxide by weight loss method at different time intervals at 25.0 °C to 40.0 °C. The result showed that the corrosion rate vary with different time interval and different acid – base concentration. The order of corrosion of iron in these media was found to be nitric acid > sulphuric acid > potassium hydroxide. Further the specific reaction rate, half-life time, energy of activation, entropy of activation and enthalpy of activation was also evaluated.