Mallika, J (2013) INVESTIGATION OF THE INHIBITIVE EFFECT OF 1,8- NAPHTHYRIDINE DERIVATIVES ON CORROSION OF MILD STEEL IN ACIDIC MEDIA. RASAYAN Journal of Chemistry, 6 (1). pp. 52-64. ISSN 0976-0083

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Abstract

In the present investigation 1,8-naphthyridine compounds have been synthesized and its inhibition action on the
corrosion of mild steel in 1M HCl was investigated by corrosion weight loss test, electrochemical impedance
spectroscopy, potentiodynamic polarization and solution analysis techniques (AAS). Polarization measurements
clearly indicate that the examined compounds acts as mixed inhibitors and the inhibition efficiency increases with
inhibitor concentration. Changes in the impedance parameters (Rct and Cdl) are indicative of the adsorption of
naphthyridine compounds on the metal surface, leading to the formation of protective film. Solution analyses were
carried out by atomic absorption spectroscopy, which shows decreased dissolution of iron in the presence of
inhibitors. Physical adsorption is proposed for the inhibition and the process followed the Langmuir adsorption
isotherm.

Item Type: Article
Uncontrolled Keywords: 1,8-Naphthyridines, Mild steel, Impedance, Polarization, Atomic absorption spectroscopic method
Divisions: PSG College of Arts and Science > Department of Chemistry
Depositing User: Mr Team Mosys
Date Deposited: 27 Jun 2023 06:00
Last Modified: 27 Jun 2023 06:00
URI: http://ir.psgcas.ac.in/id/eprint/1923

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