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New Corrosion Inhibitors for Low-Carbon Steel in Hydrochloric Acid Solutions

  • CORROSION INHIBITORS
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Abstract—The effects that indolizine derivatives, a tellurium organic compound, rhodanine, sodium diethyldithiocarbamate, and some of their mixtures have on corrosion of steel in 1 M hydrochloric acid are studied by gravimetric analysis, kinetic measurements at different temperatures, polarization measurements, and impedance spectroscopy. The listed compounds and their mixtures are found to be effective inhibitors of acidic corrosion of low-carbon steel. In the presence of inhibitors, the corrosion of steel in hydrochloric acid is shown to be kinetically controlled. The considered additives have different influences on partial reactions in the corrosion process.

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ACKNOWLEDGMENTS

We are grateful to senior lecturer A. V. Tkachuk in the School of Chemistry of Natural and High-Molecular-Weight Compounds, Southern Federal University, for kindly providing us with the organic compounds for this study.

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Authors and Affiliations

  1. Southern Federal University, Rostov-on-Don, Russia

    A. G. Berezhnaya & V. V. Chernyavina

  2. Don State Technical University, Rostov-on-Don, Russia

    L. M. Astakhova

Authors
  1. A. G. Berezhnaya
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  2. V. V. Chernyavina
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  3. L. M. Astakhova
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Correspondence to A. G. Berezhnaya.

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Translated by A. Kukharuk

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Berezhnaya, A.G., Chernyavina, V.V. & Astakhova, L.M. New Corrosion Inhibitors for Low-Carbon Steel in Hydrochloric Acid Solutions. Prot Met Phys Chem Surf 57, 1313–1318 (2021). https://doi.org/10.1134/S2070205121070042

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  • DOI: https://doi.org/10.1134/S2070205121070042

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