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      Ethanedihydrazide as a Corrosion Inhibitor for Iron in 3.5% NaCl Solutions

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          Abstract

          Corrosion of iron in sodium chloride (3.5% wt) solutions and its inhibition by ethanedihydrazide (EH) have been reported. Electrochemical impedance spectroscopy (EIS), cyclic potentiodynamic polarization (CPP), and change of current with time at −475 mV (Ag/AgCl) measurements were employed in this study. Scanning electron microscopy (SEM) and energy-dispersive X-ray (EDX) techniques were utilized to report surface morphology and elemental analysis, respectively. The presence of 5 × 10 –5 M EH was found to inhibit the corrosion of iron, and the effect of inhibition profoundly increased with an increase in EH concentration up to 1 × 10 –4 M and further to 5 × 10 –4 M. The low values of corrosion current and high corrosion resistance, which were obtained from the EIS, CPP, and change of current with time experiments, affirmed the adequacy of EH as a corrosion inhibitor for iron. Surface investigations demonstrated that the chloride solution without EH molecules causes severe corrosion, while the coexistence of EH within the chloride solution greatly minimizes the acuteness of chloride, particularly pitting corrosion.

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          The inhibition of low carbon steel corrosion in hydrochloric acid solutions by succinic acid

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            A study of the inhibition of iron corrosion by imidazole and its derivatives self-assembled films

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              2-Amino-5-ethyl-1,3,4-thiadiazole as a corrosion inhibitor for copper in 3.0% NaCl solutions

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                Author and article information

                Journal
                ACS Omega
                ACS Omega
                ao
                acsodf
                ACS Omega
                American Chemical Society
                2470-1343
                27 May 2021
                08 June 2021
                : 6
                : 22
                : 14525-14532
                Affiliations
                []Chemistry Department, College of Science and Arts, Jouf University , Gurayat, Saudi Arabia
                []Department of Chemistry, Faculty of Science, Al-Azhar University , Nasr City, Cairo, Egypt
                [§ ]Center of Excellence for Research in Engineering Materials (CEREM), College of Engineering, King Saud University , P.O. Box 800, Al-Riyadh 11421, Saudi Arabia
                []Mechanical Design and Materials Department, Faculty of Energy Engineering, Aswan University , Aswan 81521, Egypt
                Author notes
                Author information
                https://orcid.org/0000-0002-7260-639X
                Article
                10.1021/acsomega.1c01422
                8190908
                34124475
                ec1a5a4f-4de1-4d5a-b41e-cdbfc4f33843
                © 2021 The Authors. Published by American Chemical Society

                Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works ( https://creativecommons.org/licenses/by-nc-nd/4.0/).

                History
                : 22 March 2021
                : 13 May 2021
                Funding
                Funded by: Al Jouf University, doi 10.13039/501100007614;
                Award ID: DSR2020-05-412
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                Custom metadata
                ao1c01422
                ao1c01422

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