Amines as corrosion inhibitors: A review

Chandrabhan Verma*, M. A. Quraishi, Eno E. Ebenso, Chaudhery Mustansar Hussain

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

1 Scopus citations

Abstract

Use of organic compounds is established as one of the most popular, cost-effective, ease, and inhibition effective method of corrosion inhibition. Presence of heteroatoms particularly nitrogen (N), oxygen (O), sulfur (S), and phosphorus (P) further enhance the inhibition effectiveness of the organic corrosion inhibitors. These heteroatoms mostly present in the form of polar functional groups that enhance their solubility in the polar electrolytes along with enhancing their inhibition efficiency. Inhibition effectiveness of these heteroatoms followed the order: P > S > N > O. Literature studies showed that amine-based aliphatic and aromatic compounds are extensively used as corrosion inhibitors for different metals and alloys in various electrolytes. These compounds become effective by adsorbing and forming an inhibitive film at the interface of metal and electrolyte. Generally, amino (-NH2) group of such compounds serves as site for interaction with the metallic surface and rest parts of the molecules behave as water repellent. The amine-based aliphatic and aromatic compounds adsorb on metallic surface using donor-acceptor (coordination) bonding. Present report describes the assortment on "aliphatic and aromatic amines as corrosion inhibitors." A basic aspect of corrosion and corrosion inhibition mechanism using amine-based compounds is also described in this chapter.

Original languageEnglish
Title of host publicationOrganic Corrosion Inhibitors
Subtitle of host publicationSynthesis, Characterization, Mechanism, and Applications
Publisherwiley
Pages77-94
Number of pages18
ISBN (Electronic)9781119794516
ISBN (Print)9781119794486
DOIs
StatePublished - 7 Nov 2021

Bibliographical note

Publisher Copyright:
© 2022 John Wiley & Sons, Inc.

Keywords

  • Acid solution
  • Amines
  • Computational modelings
  • Corrosion inhibition
  • Langmuir adsorption isotherm
  • Mixed-type inhibitors

ASJC Scopus subject areas

  • General Engineering
  • General Materials Science

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