Online from: 1954
Subject Area: Mechanical & Materials Engineering
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|Title:||Inhibition of carbon steel corrosion by 4-vinylbenzyl triphenyl phosphonium chloride in HCl solution|
|Author(s):||Ayssar Nahlé, (Department of Chemistry, College of Arts and Sciences, University of Sharjah, Sharjah, United Arab Emirates), Ideisan Abu-Abdoun, (Department of Chemistry, College of Arts and Sciences, University of Sharjah, Sharjah, United Arab Emirates), Ibrahim Abdel-Rahman, (Department of Chemistry, College of Arts and Sciences, University of Sharjah, Sharjah, United Arab Emirates)|
|Citation:||Ayssar Nahlé, Ideisan Abu-Abdoun, Ibrahim Abdel-Rahman, (2008) "Inhibition of carbon steel corrosion by 4-vinylbenzyl triphenyl phosphonium chloride in HCl solution", Anti-Corrosion Methods and Materials, Vol. 55 Iss: 4, pp.217 - 224|
|Keywords:||Corrosion inhibitors, Electrochemistry, Steel|
|Article type:||Research paper|
|DOI:||10.1108/00035590810887727 (Permanent URL)|
|Publisher:||Emerald Group Publishing Limited|
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.
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