New Heterocyclic Derivative to Stop Carbon Steel Corrosion

Author:

Deyab M. A.1,Fouda A. S.2,Abdel-Fattah S.3

Affiliation:

1. Egyptian Petroleum Research Institute (EPRI) , PO Box 11727 , Nasr City, Cairo , Egypt , Tel.: +201006137150; Fax: +202 22747433

2. Department of Chemistry, Faculty of Science , El-Mansoura University , El-Mansoura , Egypt

3. Egyptian Petroleum Research Institute (EPRI) , PO Box 11727 , Nasr City, Cairo , Egypt

Abstract

Abstract The new compound 4-(2-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)hydrazono)-3-methyl-5-oxo-4,5-dihydro-1H-pyrazole-1-carbothioamide (PY) was synthesized. Its anti-corrosion properties for C-steel in acid solution (1.0 M HCl) were evaluated utilize electrochemical tools. The synthesized compound was described using FT-IR and 1H-NMR analyses. The purity of PY was affirmed by thin-layer chromatography (TLC). The outcome data proved that PY possess adequate anti-corrosion features for C-steel in corrosive solution. The polarization parameters mentioned that the PY is a mixed inhibitor. Inhibition performance obtained by polarization measurements (i.e. 91.5%) are consistent with the one obtained by EIS (i.e. 88.6%). Quantum chemical parameters for PY were studied to supply assist knowledge into the anti-corrosion properties of the new compound.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry

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