Keywords
mild steel
pyridoxol hydrochloride
kinetic treatment
How to Cite
Abstract
The inhibition of the corrosion of mild steel in 2M hydrochloric acid solutionsby Pyridoxol hydrochloride (PXO) has been studied using weight loss and hydrogen
evolution techniques. The inhibitor (PXO) exhibited highest inhibition efficiency of
71.93% at the highest inhibitor concentration of 1.0 x 10 -2 M investigated and a
temperature of 303K from weight loss result. Also, inhibition was found to increase with
increasing concentration of the inhibitor and decreasing temperature. A first order type
of mechanism has been deduced from the kinetic treatment of the weight loss results and
the process of inhibition attributed to physical adsorption. The results obtained from the
two techniques show that pyridoxol hydrochloride could serve as an effective inhibitor
of the corrosion of mild steel in HCl acid solution. The compound obeys the Langmuir
adsorption isotherm equation.
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