INHIBITIVE ACTION OF PIPERIDINE ON HSLA STEEL CORROSION AND HYDROGEN EVOLUTION REACTION IN H//2SO//4 MEDIA.

Abstract

A study of the corrosion behavior of HSLA steel in 1N-H//2SO//4 solution suggest that piperidine acts as a good inhibitor for corrosion and hydrogen evolution reaction (h. e. r. ). The rate of h. e. r. on HSLA steel was found to be of first order with respect to left bracket H** plus right bracket . The corrosion current decreases with increasing concentration of piperidine. The adsorption of piperidine on the surface of the steel follows Langmuir adsorption isotherm.