Evaluation of Metoral pill as an effective and novel inhibitor for corrosion of mild steel in acidic media

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Mohammadi Nezhad Fatemeh; Shahidi Zandi Mehdi; HOSSEINI SEYYED MOHAMMAD ALI; Bahrami Mohammad Javad

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Journal: JOURNAL OF NEW MATERIALS Year:2019 | Volume:9 | Issue:2 (34) Page(s): 133-145

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Title

Evaluation of Metoral pill as an effective and novel inhibitor for corrosion of mild steel in acidic media

Author(s)

Mohammadi Nezhad Fatemeh | Shahidi Zandi Mehdi | HOSSEINI SEYYED MOHAMMAD ALI | Bahrami Mohammad Javad | Issue Writer Certificate

Keywords

Electrochemical Impedance SpectroscopyQ2

Potentiodynamic PolarizationQ2

Phosphoric AcidQ1

Mild SteelQ2

MetoralQ1

Abstract

In this study, the inhibition effect of Metoral tablet as corrosion inhibitor for Mild Steel in 0. 5 M Phosphoric Acid solution was investigated using Potentiodynamic Polarization, Electrochemical Impedance Spectroscopy, and the scaning electron microscopy techniques. The results showed that the maximum inhibition efficiency of this drug was found to be 300 ppm, and decreased with the increase in temperature for all of the solutions. Potentiodynamic Polarization curves indicated that the inhibitor acts as mixed-type inhibitor and the corrosion current density decreased with increasing the inhibitor concentration. The results obtained from analysis of EIS data was in good agreement with those achieved by the polarization measurements. The adsorption studies indicated that the adsorption of the inhibitor on the alloy surface obeys Langmuir adsorption isotherm. The adsorption process is spontaneous and exothermic process and the entropy of adsorption in this solutions decreases. Keywords: Electrochemical Impedance Spectroscopy, Potentiodynamic Polarization, Phosphoric Acid, Mild Steel, Metoral.

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References

THE PERFORMANCE OF SELF-ASSEMBLED THIN FILM OF IMIDAZOLE USED IN ORGANIC-INORGANIC HYBRID COATING ON ‎CORROSION INHIBITION OF CARBON STEEL IN ACIDIC SOLUTION

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APA: Copy

Mohammadi Nezhad, Fatemeh, Shahidi Zandi, Mehdi, HOSSEINI, SEYYED MOHAMMAD ALI, & Bahrami, Mohammad Javad. (2019). Evaluation of Metoral pill as an effective and novel inhibitor for corrosion of mild steel in acidic media. JOURNAL OF NEW MATERIALS, 9(2 (34) ), 133-145. SID. https://sid.ir/paper/169893/en

Vancouver: Copy

Mohammadi Nezhad Fatemeh, Shahidi Zandi Mehdi, HOSSEINI SEYYED MOHAMMAD ALI, Bahrami Mohammad Javad. Evaluation of Metoral pill as an effective and novel inhibitor for corrosion of mild steel in acidic media. JOURNAL OF NEW MATERIALS[Internet]. 2019;9(2 (34) ):133-145. Available from: https://sid.ir/paper/169893/en

IEEE: Copy

Fatemeh Mohammadi Nezhad, Mehdi Shahidi Zandi, SEYYED MOHAMMAD ALI HOSSEINI, and Mohammad Javad Bahrami, “Evaluation of Metoral pill as an effective and novel inhibitor for corrosion of mild steel in acidic media,” JOURNAL OF NEW MATERIALS, vol. 9, no. 2 (34) , pp. 133–145, 2019, [Online]. Available: https://sid.ir/paper/169893/en

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