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

Julieta Daniela CHELARU; Mihaela CIOBRA; Liana Maria MUREȘAN

doi:10.24193/subbchem.2020.1.02

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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STUDIA UBB CHEMIA, Volume 65 (LXV), No. 1, March 2020

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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