Effect of Iodide on the Corrosion Inhibitive Behaviour on Carbon steel by an Azomethine Compound Derived from Anthracene-9(10 H)-one
| Autor: | Vinod P. Raphael, Joby Thomas K, Shaju K S |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
chemistry.chemical_classification
Anthracene Carbon steel Inorganic chemistry Iodide technology industry and agriculture Langmuir adsorption model General Chemistry engineering.material Biochemistry Dielectric spectroscopy Metal symbols.namesake chemistry.chemical_compound Adsorption chemistry visual_art Drug Discovery symbols visual_art.visual_art_medium engineering Environmental Chemistry Freundlich equation |
| Zdroj: | Oriental Journal of Chemistry. 30:807-813 |
| ISSN: | 2231-5039 0970-020X |
| DOI: | 10.13005/ojc/300255 |
| Popis: | The inhibition effect of (s)-2-(anthracene-9(10H)-ylideneamino)-5-guanidinopentanoic acid (A9Y5GPA) on carbon steel (CS) in 0.5 M sulphuric acid solution has been investigated using weight loss measurements, electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization studies. The addition of KI to A9Y5GPA enhanced the inhibition efficiency due to synergistic effect. The adsorption of A9Y5GPA and A9Y5GPA+ KI on the carbon steel surface obeys Freundlich and Langmuir adsorption isotherm respectively. The result showed that compound studied was acted as a mixed type inhibitor causing blocking of active sites on the metal. Surface morphology of the carbon steel specimens was evaluated by SEM analysis. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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