Inhibition of carbon steel corrosion by 4‐vinylbenzyl triphenyl phosphonium chloride in HCl solution

Inhibition of carbon steel corrosion by 4‐vinylbenzyl triphenyl phosphonium chloride in HCl... Purpose – The purpose of this paper is to study electrochemically and by weight loss experiments the effect of 4‐vinylbenzyl triphenyl phosphonium chloride on the corrosion inhibition of mild steel in 1.0 M HCl solution, which will serve researchers in the field of corrosion. Design/methodology/approach – Electrochemical and weight loss measurements were carried out on carbon steel specimens in 1.0 M HCl and in 1.0 M HCl containing various concentrations (1.0 × 10 −7 to 1.0 × 10 −4 M) of the laboratory synthesized 4‐vinylbenzyl triphenyl phosphonium chloride at temperatures ranging from 303 to 343 K. Findings – 4‐vinylbenzyl triphenyl phosphonium chloride was found to be a highly efficient inhibitor for carbon steel in 1.0 M HCl solution, reaching about 99 per cent at the concentration of 1 × 10 −4 M at room temperature and about 96 per cent at 303 K, a concentration and temperature considered to be very moderate. The percentage of inhibition in the presence of this inhibitor was decreased with temperature which indicates that physical adsorption was the predominant inhibition mechanism because the quantity of adsorbed inhibitor decreases with increasing temperature. Practical implications – This inhibitor could have application in industries, where hydrochloric acid solutions at elevated temperatures are used to remove scale and salts from steel surfaces, such as acid cleaning of tankage and pipeline, and may render dismantling unnecessary. Originality/value – This paper is intended to be added to the family of phosphonium salt corrosion inhibitors which are highly efficient and can be employed in the area of corrosion prevention and control. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Anti-Corrosion Methods and Materials Emerald Publishing

Inhibition of carbon steel corrosion by 4‐vinylbenzyl triphenyl phosphonium chloride in HCl solution

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Publisher
Emerald Publishing
Copyright
Copyright © 2008 Emerald Group Publishing Limited. All rights reserved.
ISSN
0003-5599
DOI
10.1108/00035590810887727
Publisher site
See Article on Publisher Site

Abstract

Purpose – The purpose of this paper is to study electrochemically and by weight loss experiments the effect of 4‐vinylbenzyl triphenyl phosphonium chloride on the corrosion inhibition of mild steel in 1.0 M HCl solution, which will serve researchers in the field of corrosion. Design/methodology/approach – Electrochemical and weight loss measurements were carried out on carbon steel specimens in 1.0 M HCl and in 1.0 M HCl containing various concentrations (1.0 × 10 −7 to 1.0 × 10 −4 M) of the laboratory synthesized 4‐vinylbenzyl triphenyl phosphonium chloride at temperatures ranging from 303 to 343 K. Findings – 4‐vinylbenzyl triphenyl phosphonium chloride was found to be a highly efficient inhibitor for carbon steel in 1.0 M HCl solution, reaching about 99 per cent at the concentration of 1 × 10 −4 M at room temperature and about 96 per cent at 303 K, a concentration and temperature considered to be very moderate. The percentage of inhibition in the presence of this inhibitor was decreased with temperature which indicates that physical adsorption was the predominant inhibition mechanism because the quantity of adsorbed inhibitor decreases with increasing temperature. Practical implications – This inhibitor could have application in industries, where hydrochloric acid solutions at elevated temperatures are used to remove scale and salts from steel surfaces, such as acid cleaning of tankage and pipeline, and may render dismantling unnecessary. Originality/value – This paper is intended to be added to the family of phosphonium salt corrosion inhibitors which are highly efficient and can be employed in the area of corrosion prevention and control.

Journal

Anti-Corrosion Methods and MaterialsEmerald Publishing

Published: Jun 27, 2008

Keywords: Corrosion inhibitors; Steel; Electrochemistry

References

  • The effect of some phthalimide derivatives on the corrosion behaviour of copper in nitric acid
    Fouda, A.S.; Abd El‐Aal, A.; Kandil, A.B.
  • Phosphonium iodine as nickel corrosion inhibitor in 1 M sulfuric acid medium
    Said, F.; Souissi, N.; Es‐Salah, K.; Hajjaji, N.; Triki, E.; Srhiri, A.

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