Inhibition Effects of a DMPO Derivative on the Corrosion of Zinc-Aluminium Alloy in 0.1N Hydrochloric Acid Solution by OCP Method at Different Temperatures
- *Corresponding Author:
- Pruthviraj RD
R&D Centre, Department of Chemistry
RajaRajeswari College of Engineering
Bangalore, Karnataka, India
E-mail: [email protected]
Received Date: November 03, 2015; Accepted Date: November 10, 2015; Published Date: November 20, 2015
Citation: Pruthviraj RD, Venkatesh K, Somashekariah BV, Ramesha S (2015) Inhibition Effects of a DMPO Derivative on the Corrosion of Zinc-Aluminium Alloy in 0.1N Hydrochloric Acid Solution by OCP Method at Different Temperatures. J Material Sci Eng 5:212. doi:10.4172/2169-0022.1000212
Copyright: © 2015 Pruthviraj RD, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
1,5-Dimethyl-4-((2-methylbenzylidene)amino)-2-phenyl-1H-pyrazol-3(2H)-one (DMPO) was synthesized to be evaluated as a corrosion inhibitor. The corrosion inhibitory effects of DMPO on Zinc-Aluminum alloy in 1.0 M HCl were investigated using open circuit potential (OCP). The results showed that DMPO inhibited Zinc-Aluminium alloy corrosion in acid solution and indicated that the inhibition efficiency increased with increasing inhibitor concentration. Changes in the impedance parameters suggested an adsorption of DMPO onto the Zinc-Aluminum Alloy surface, leading to the formation of protective films. The novel synthesized corrosion inhibitor was characterized using UV-Vis spectral analyses.