INHIBITION EFFECT OF SOME COMMERCIAL CORROSION INHIBITORS ON MILD STEEL IN 7.0 M PHOSPHORIC ACID

Authors

  • Julieta Daniela CHELARU “Babeş-Bolyai” University, Faculty of Chemistry and Chemical Engineering, Department of Chemical Engineering, 11 Arany Janos St., 400028 Cluj-Napoca, Romania https://orcid.org/0000-0001-5861-5073
  • Mihaela CIOBRA “Babeş-Bolyai” University, Faculty of Chemistry and Chemical Engineering, Department of Chemical Engineering, 11 Arany Janos St., 400028 Cluj-Napoca, Romania
  • Liana Maria MUREȘAN “Babeş-Bolyai” University, Faculty of Chemistry and Chemical Engineering, Department of Chemical Engineering, 11 Arany Janos St., 400028 Cluj-Napoca, Romania. *Corresponding author: limur@chem.ubbcluj.ro https://orcid.org/0000-0002-2891-2947

DOI:

https://doi.org/10.24193/subbchem.2020.1.02

Keywords:

mild steel, corrosion inhibitors, electrochemical impedance spectroscopy, polarization curves, inhibitor efficiency, phosphoric acid

Abstract

Corrosion tests were carried out in order to find the best inhibitor for the protection of steel pipelines used in H3PO4 and fertilizers industry. The corrosion inhibition efficiency of five commercial inhibitors was investigated on mild steel by using electrochemical methods (EIS and polarization curves) in a 7M H3PO4 solution (pH 0.5). The efficiency of best corrosion inhibitors was tested at different concentrations.

 

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Published

2020-03-20

How to Cite

CHELARU, J. D., CIOBRA, M., & MUREȘAN, L. M. (2020). INHIBITION EFFECT OF SOME COMMERCIAL CORROSION INHIBITORS ON MILD STEEL IN 7.0 M PHOSPHORIC ACID. Studia Universitatis Babeș-Bolyai Chemia, 65(1), 17–26. https://doi.org/10.24193/subbchem.2020.1.02

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