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Synthesis, Identification, Theoretical And Experimental Studies For Carbon Steel Corrosion Inhibition in Sea Water for New Urea and Thiourea Derivatives linkage to 5-Nitro Isatin Moiety | Abstract

Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry

ISSN: 0975-413X
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Abstract

Synthesis, Identification, Theoretical And Experimental Studies For Carbon Steel Corrosion Inhibition in Sea Water for New Urea and Thiourea Derivatives linkage to 5-Nitro Isatin Moiety

Author(s): Rehab Majed Kubba, Suaad Mohammed Hussain Al-Majidi, Athraa Hikmat Ahmad

This research includes synthesis of some new heterocyclic derivatives of 5-Nitroisatin namely 5-Nitro-3-(Ethyl imino acetate)-2-oxo indole (1), 5-Nitro-3-[(imino Aceto) urea]-2-oxo indole (2), 5-Nitro-3-[(imino Aceto)thiourea]-2-oxo indole (3), and 5-Nitro-3-[(imino Aceto) phenylthiourea]-2-oxo indole (4), and characterized by Fourier-transform infrared (FTIR) spectroscopy, Proton nuclear magnetic resonance (1H-NMR) and some physical properties. Theoretically, the inhibition efficiency parameters with physical properties were calculated to ensure for possibility using these compounds as inhibitors. Experimentally, studying the chosen compound of the corrosion inhibition efficiency for carbon steel in 3.5% NaCl solution by isatin derivative is chosen theoretically as the best inhibitor using potentiodynamic polarization.


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