Synergistic Effect of KI on Corrosion Inhibition of Mild Steel by Polynuclear Schiff Base in Sulphuric Acid
Joint Authors
Raphael, Vinod P.
Paul, Aby
Kakkassery, Joby Thomas
Shanmughan, Shaju K.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-12-05
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Synergistic effect of KI on the corrosion inhibition efficiency of polynuclear Schiff base, anthracene-9(10H)-one-3-aminopropanoic acid (A9O3AP), on mild steel (MS) in 0.5 M sulphuric acid solution has been investigated using weight loss measurements, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization studies.
The results show that inhibition efficiencies on MS increase with increase in concentration of the inhibitor and enhancement in inhibition efficiency was observed on addition of potassium iodide due to synergism.
The adsorptions, of inhibitor and inhibitor + KI on the surfaces of the corroding metal obey Freundlich and Langmuir isotherms, respectively.
Polarization studies revealed that A9O3AP acts as a mixed type inhibitor.
Thermodynamic parameters (Kads; ΔGads0) were calculated using the adsorption isotherms.
A probable synergismtic mechanism is proposed.
American Psychological Association (APA)
Shanmughan, Shaju K.& Kakkassery, Joby Thomas& Raphael, Vinod P.& Paul, Aby. 2012. Synergistic Effect of KI on Corrosion Inhibition of Mild Steel by Polynuclear Schiff Base in Sulphuric Acid. ISRN Corrosion،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-471219
Modern Language Association (MLA)
Shanmughan, Shaju K.…[et al.]. Synergistic Effect of KI on Corrosion Inhibition of Mild Steel by Polynuclear Schiff Base in Sulphuric Acid. ISRN Corrosion No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-471219
American Medical Association (AMA)
Shanmughan, Shaju K.& Kakkassery, Joby Thomas& Raphael, Vinod P.& Paul, Aby. Synergistic Effect of KI on Corrosion Inhibition of Mild Steel by Polynuclear Schiff Base in Sulphuric Acid. ISRN Corrosion. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-471219
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-471219