Inhibition effect of a new pyrimidine derivative on the corrosion of mild steel in hydrochloric acid solution
- Authors: Shetty P.B.1, Suresha Kumara T.H.1, Mamatha D.M.1, Rao V.R.2, Chitharanjan Hegde A.2
-
Affiliations:
- Department of Chemistry
- Electrochemistry Research Laboratory, Department of Chemistry
- Issue: Vol 53, No 1 (2017)
- Pages: 42-51
- Section: Article
- URL: https://journals.rcsi.science/1068-3755/article/view/230030
- DOI: https://doi.org/10.3103/S1068375517010112
- ID: 230030
Cite item
Abstract
The inhibition effect of a newly synthesized pyrimidine derivative, namely 3-(2-(4-(hydroxymethyl)-1H-1,2,3-triazol-1-yl)ethyl)-2-methyl-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-4-one, on the corrosion of mild steel in 1.0 M HCl medium was investigated using the weight loss, the Tafel extrapolation technique and the AC impedance spectroscopy. The effect of the inhibitor concentration, temperature and concentration of the acid mixture media on the inhibitor action was also studied. It was observed that the anti-corrosion efficiency increases with an increase in the inhibitor concentration, but decreases with an increase in temperature. Thermodynamic parameters for the dissolution process were determined. The adsorption of the pyrimidine derivative on the mild steel surface was found to obey the Langmuir adsorption isotherm.
About the authors
Prakash B. Shetty
Department of Chemistry
Email: suresha.kumara@gmail.com
India, Hebbal, Bangalore, 56024
T. H. Suresha Kumara
Department of Chemistry
Author for correspondence.
Email: suresha.kumara@gmail.com
India, Davanagere, 577004
D. M. Mamatha
Department of Chemistry
Email: suresha.kumara@gmail.com
India, Davanagere, 577004
Vaishaka R. Rao
Electrochemistry Research Laboratory, Department of Chemistry
Email: suresha.kumara@gmail.com
India, Surathkal Srinivasnagar, Karnataka, 575025
A. Chitharanjan Hegde
Electrochemistry Research Laboratory, Department of Chemistry
Email: suresha.kumara@gmail.com
India, Surathkal Srinivasnagar, Karnataka, 575025