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      STUDY OF CORROSION INHIBITION PROPERTIES OF NOVEL SEMICARBAZONES ON MILD STEEL IN ACIDIC SOLUTIONS

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          Abstract

          The inhibition efficiency of corrosion on mild steel using acids by three different novel Semicarbazones as inhibitors have been studied using weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy methods. The inhibition efficiency, corrosion rate, the nature of anchoring sites and the adsorption characteristics have been determined from the results. It was found that the newly synthesized compounds behaved as mixed type inhibitors with high inhibition efficiency. The inhibition efficiency increases with increasing the inhibitors concentration but decreases with increasing the temperature. Addition of halide ion enhances the inhibition efficiency. The adsorption of the inhibitors on the mild steel surface obey Langmuir adsorption isotherm. Scanning Electron Spectroscopy is used to examine the surface morphology of mild steel samples both in the presence and absence of inhibitors at optimum conditions. Scanning Electron Microscope reveals the formation of a smooth, dense protective layer in the presence of inhibitor.

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          Metallic Corrosion Inhibitors

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              Author and article information

              Journal
              jcchems
              Journal of the Chilean Chemical Society
              J. Chil. Chem. Soc.
              Sociedad Chilena de Química (Concepción, , Chile )
              0717-9707
              March 2015
              : 60
              : 1
              : 2786-2798
              Affiliations
              [01] Coimbatore Tamil Nadu orgnamePSG college of Arts and Science India
              Article
              S0717-97072015000100004 S0717-9707(15)06000100004
              10.4067/S0717-97072015000100004
              b9790445-cc9f-416d-b915-6e1e13cf9e17

              This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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              Page count
              Figures: 0, Tables: 0, Equations: 0, References: 33, Pages: 13
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              SciELO Chile


              mild steel,Scanning Electron Spectroscopy,electro chemical impedence,Inhibitior,potentiodynamic Polarisation,2, 6-diphenylpiperidin-4-one semicarbazones,Acid solutions

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