Chemical Science & Engineering Research
Title
Heterocyclic Compounds as Corrosion Inhibitors for Mild Steel: A Review
Authors
Ramaganthan Baskar,*a Hassane Lgazb and Rachid Salghic
aDepartment of Chemistry, Indian Institute of Technology, Chennai, Tamilnadu 600036, India
bDepartment of Crop Science, College of Sanghur Life Science, Konkuk University, Seoul 05029, South Korea
cLaboratory of Applied Chemistry and Environment, ENSA, University Ibn Zohr, PO Box 1136, Agadir, Morocco
*Corresponding author E-mail address: baskarr@iitm.ac.in (R. Baskar)
Article History
Publication details: Received: 08th August 2019; Revised: 26th August 2019; Accepted: 28th August 2019; Published: 31st August 2019
Cite this article
Baskar R; Hassane L.; Salghi R. Heterocyclic Compounds as Corrosion Inhibitors for Mild Steel: A Review. Chem. Sci. Eng. Res., 2019, 1(1), 32-54.
Abstract
Corrosion inhibition of mild steels is an importance topic since the use of mild steel is inevitable in chemical processing, petroleum production, refining, pipelines, mining etc. The low cost, high mechanical strength and availability are the main advantages of the use of mild steels. Corrosion of mild steels occurs when it exposes to aggressive environment. Numerous corrosion inhibitors are developed for the control of corrosion of metals and alloys. Compounds containing N, S and O are most studied due their higher inhibition ability. Particularly in recent years, heterocyclic compounds have attracted huge attention due its simple preparation and superior corrosion inhibition activity towards mild steel in acidic environments. Therefore, the aim of the present review is to highlight the recent work carried out using heterocyclic compounds and its derivatives for steel protection in different corrosive environments. In addition, heterocyclic compounds reported for the corrosion inhibition of steel in CO2 saturated brine environment are also highlighted. Detail mechanisms involved in the inhibition processes are also discussed.
Keywords
Heterocyclic compounds; Mild steel; carbon Steel; Acidic environment; CO2 corrosion; Adsorption