Inhibition effect of a new pyrimidine derivative on the corrosion of mild steel in hydrochloric acid solution


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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.

作者简介

Prakash Shetty

Department of Chemistry

Email: suresha.kumara@gmail.com
印度, Hebbal, Bangalore, 56024

T. Suresha Kumara

Department of Chemistry

编辑信件的主要联系方式.
Email: suresha.kumara@gmail.com
印度, Davanagere, 577004

D. Mamatha

Department of Chemistry

Email: suresha.kumara@gmail.com
印度, Davanagere, 577004

Vaishaka Rao

Electrochemistry Research Laboratory, Department of Chemistry

Email: suresha.kumara@gmail.com
印度, Surathkal Srinivasnagar, Karnataka, 575025

A. Chitharanjan Hegde

Electrochemistry Research Laboratory, Department of Chemistry

Email: suresha.kumara@gmail.com
印度, Surathkal Srinivasnagar, Karnataka, 575025

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