Study of Temperature Effect on the Corrosion Inhibition of C38 Carbon Steel Using Amino-tris(Methylenephosphonic) Acid in Hydrochloric Acid Solution

Author:

Labjar Najoua12,Bentiss Fouad3,Lebrini Mounim2,Jama Charafeddine2ORCID,El hajjaji Souad1ORCID

Affiliation:

1. Laboratoire de Spectroscopie Infrarouge, Faculté des Sciences, University Med V Agdal, avenue Ibn Battouta, BP 1014, Rabat 10000, Morocco

2. Unité Matériaux et Transformations (UMET), Ingénierie des Systèmes Polymères CNRS UMR 8207, ENSCL, BP 90108, 59652 Villeneuve d'Ascq Cedex, France

3. Laboratoire de Chimie de Coordination et d'Analytique, Faculté des Sciences, Université Chouaib Doukkali, BP 20, El Jadida 24000, Morocco

Abstract

Tafel polarization method was used to assess the corrosion inhibitive and adsorption behaviours of amino-tris(methylenephosphonic) acid (ATMP) for C38 carbon steel in 1 M HCl solution in the temperature range from 30 to . It was shown that the corrosion inhibition efficiency was found to increase with increase in ATMP concentration but decreased with temperature, which is suggestive of physical adsorption mechanism. The adsorption of the ATMP onto the C38 steel surface was found to follow Langmuir adsorption isotherm model. The corrosion inhibition mechanism was further corroborated by the values of kinetic and thermodynamic parameters obtained from the experimental data.

Publisher

Hindawi Limited

Subject

Process Chemistry and Technology,General Materials Science

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