AN ELECTROCHEMICAL STUDY FOR CORROSION INHIBITION OF IRON BY A DERIVATIVE OF ORGANIC PHOSPHONIUM HALID IN ACID MEDIA

Authors

  • M. L. Belfar Lab. Dynamic Interactions and Reactivity of Systems, Process Engineering Department, Faculty of Applied Sciences, University Kasdi Merbah, Ouargla 30000, Algeria
  • H. Zerrouki Electrochemical Laboratory, Chemistry Department, Faculty of mathematics and Matter sciences, University Kasdi Merbah, Ouargla 30000, Algeria
  • A. Alaoui Electrochemical Laboratory, Chemistry Department, Faculty of mathematics and Matter sciences, University Kasdi Merbah, Ouargla 30000, Algeria
  • L. Sekhri Lab. Dynamic Interactions and Reactivity of Systems, Process Engineering Department, Faculty of Applied Sciences, University Kasdi Merbah, Ouargla 30000, Algeria

DOI:

https://doi.org/10.4314/jfas.v11i3.23

Keywords:

Iron, Phosphonium salt, sulfuric acid, corrosion, inhibitor, electrochemical methods

Abstract

Steel and its alloys have many industrial applications, especially in the chemical, thermal, nuclear and, recently, in the petroleum industry. Therefore the study of corrosion and corrosion inhibition of this metal is a very important subject. This work describes the study of the corrosion behavior of XC 70 steel in sulfuric acid medium and the evaluation of the protective power of a series of synthesized compounds such as methyltriphenylphosphonium iodide3. The study was carried out using the Tafel straight line method and electrochemical impedance spectroscopy. The results obtained show that methyltriphenylphosphonium iodide (8) is a very effective mixed inhibitor and reaches a maximum of 83.71% at C = 30 M and for the rotational state of 1500 rpm. The inhibitory efficacy of this compound reaches a maximum of 97.80 at C = 60 M and the results indicate that adsorption is chemisorption following Langmur.

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References

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Published

2019-08-31

How to Cite

BELFAR, M. L.; ZERROUKI, H.; ALAOUI, A.; SEKHRI, L. AN ELECTROCHEMICAL STUDY FOR CORROSION INHIBITION OF IRON BY A DERIVATIVE OF ORGANIC PHOSPHONIUM HALID IN ACID MEDIA. Journal of Fundamental and Applied Sciences, [S. l.], v. 11, n. 3, p. 1367–1391, 2019. DOI: 10.4314/jfas.v11i3.23. Disponível em: https://jfas.info/index.php/JFAS/article/view/542. Acesso em: 30 jan. 2025.

Issue

Vol. 11 No. 3 (2019)

Section

Articles

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Copyright (c) 2019 H. Zerrouki, A. Alaoui, M. L. Belfar, L. Sekhri

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.