Amines as corrosion inhibitors: A review

Document Type

Syllabus

Publication Date

11-7-2021

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.

Identifier

85147917476 (Scopus)

ISBN

[9781119794486, 9781119794516]

Publication Title

Organic Corrosion Inhibitors Synthesis Characterization Mechanism and Applications

External Full Text Location

https://doi.org/10.1002/9781119794516.ch5

First Page

77

Last Page

94

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