Ayssar Nahlé, Ideisan Abu‐Abdoun and Ibrahim Abdel‐Rahman
To provide a novel synthesized stilbazole derivative as a corrosion inhibitor for researchers in the field of corrosion science.
Abstract
Purpose
To provide a novel synthesized stilbazole derivative as a corrosion inhibitor for researchers in the field of corrosion science.
Design/methodology/approach
Electrochemical corrosion measurements (tafel plots) were carried out in a 3‐electrode electrochemical cell on the mild steel electrode in 1.0 M HCl and in 1.0 M HCl containing various concentrations (1.0 × 10−7 M to 1.0 × 10−3 M) of the laboratory synthesized trans‐4‐hydroxy‐4'‐stilbazole.
Findings
The percentage inhibition of trans‐4‐hydroxy‐4'‐stilbazole on mild steel in 1 M HCl solution increased with the increase of concentration of that inhibitor. This percentage inhibition steeply increased from 10.11 percent (at 1.0 × 10−7 M) to 30.34 percent at 1.0 × 10−6 M. The slope of this increase slightly decreased at the concentration of 1.0 × 10−5 M to reach 39.61 percent. At higher concentrations, the increase of the percentage inhibition was steeper than the initial part, and reached 97.92 percent at 1.0 × 10−3 M.
Practical implications
This inhibitor could have application in industries, where hydrochloric acid solutions 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 the building block or the nucleus for a new family or group of stilbazole derivatives in electrochemical studies of corrosion inhibitors.
Details
Keywords
Ayssar Nahlé, Maysoon Al‐Khayat, Ideisan Abu‐Abdoun and Ibrahim Abdel‐Rahman
The purpose of this paper is to study electrochemically and by weight loss experiments the effect of P,P′‐Bis (triphenylphosphonio) methyl benzophenone dibromide (TPPMB) on the…
Abstract
Purpose
The purpose of this paper is to study electrochemically and by weight loss experiments the effect of P,P′‐Bis (triphenylphosphonio) methyl benzophenone dibromide (TPPMB) on the corrosion inhibition of mild steel in 1.0M HCl solution, which will serve researchers in the field of corrosion.
Design/methodology/approach
Weight loss measurements were carried out on mild steel specimens in 1.0M HCl and in 1.0M HCl containing various concentrations (2×10−8M and 2×10−5M) of the laboratory synthesized TPPMB at temperatures ranging from 303 to 343 K.
Findings
TPPMB was found to be a highly efficient inhibitor for mild steel in 1.0M HCl solution, reaching about 98% at the concentration of 2×10−5M 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.
Details
Keywords
Ayssar Nahlé, Ideisan Abu‐Abdoun and Ibrahim Abdel‐Rahman
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…
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.