Inhibiting Effect of Cytisine Derivative on the Corrosion of Mild Steel in Acidic Medium

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Article | Open Access

Inhibiting Effect of Cytisine Derivative on the Corrosion of Mild Steel in Acidic Medium

Wequar Ahmad Siddiqi¹, Vishwa Mohan Chaubey¹ and M. Sharif Ahmad²

1Department of Applied Sciences & Humanities. Faculty of Engineering and Technology, Jamia Millia Islamia, New Delhi - 110 025 (India) 2Department of Chemistry. Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi - 110 025 (India)

DOI : http://dx.doi.org/10.13005/msri/040119

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ABSTRACT:

The inhibition effect of Cytisine derivative namely [ N-( 3- Methylthio-5-acetamido-1,2,4-thiadiazolyl ) cytisine ] on mild steel in 1M H2SO4 has been studied by using weight loss, electrochemical polarization and scanning electron microscopic (SEM) techniques. It has been concluded that percentage inhibition increases with increase in concentration of inhibitor. The adsorption of [ N-( 3- Methylthio-5-acetamido-1,2,4-thiadiazolyl ) cytisine ] on mild steel surface in 1M H2SO4 obeys Langumir adsorption isotherm, surface analysis studies are carried out to establish the mechanism of corrosion inhibition. The polarization data indicate that this compound act as very good cathodic inhibitors for mild steel in 1M H2SO4 and its inhibition efficiency increases with concentration and the highest value obtained is around 92%.

KEYWORDS:

Corrosion; Inhibition; mild steel; H2SO4; [N-( 3- Methylthio-5-acetamido-1;2;4-thiadiazolyl )

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