METOCLOPRAMIDE: A NEW AND EFFECTIVE INHIBITOR FOR CORROSION INHIBITION OFMILD STEEL IN 0. 5 M PHOSPHORIC ACID SOLUTION

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GOLSHANI Z.; SHAHIDI ZANDI M.; BAHRAMI M.J.; HOSSEINI S.M.A.

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Journal: Journal of Applied Research in Chemistry Year:2018 | Volume:12 | Issue:1 Page(s): 61-69

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Title

METOCLOPRAMIDE: A NEW AND EFFECTIVE INHIBITOR FOR CORROSION INHIBITION OFMILD STEEL IN 0. 5 M PHOSPHORIC ACID SOLUTION

Author(s)

GOLSHANI Z. | SHAHIDI ZANDI M. | BAHRAMI M.J. | HOSSEINI S.M.A. | Issue Writer Certificate

Keywords

GREEN CORROSION INHIBITORQ1

POTENTIODYNAMIC POLARIZATIONQ1

ELECTROCHEMICAL IMPEDANCESPECTROSCOPYQ1

MILD STEELQ1

METOCLOPRAMIDEQ1

Abstract

In this work, the inhibitive behavior of METOCLOPRAMIDE tablet on the corrosion ofmild steel in 0. 5 M phosphoric acid solution was investigated employing potentiodynamicpolarization, electrochemical impedance spectroscopy (EIS) and scanning electron microscopy(SEM) techniques. The results showed that the inhibition efficiency increased with increase in theconcentration of inhibitor, up to 300 ppm and the increase in temperature caused the reduction in theinhibition efficiency. POTENTIODYNAMIC POLARIZATION measurements indicated that the inhibitor actsas an anodic type inhibitor. The EIS measurements showed that by addition of the inhibitor up to300 ppm, the charge transfer resistance increased and the double layer capacitance (Cdl) decreased. The results obtained from POTENTIODYNAMIC POLARIZATION and EIS were in good agreement. Theadsorption studies revealed that the adsorption of the inhibitor in the solution on the alloy surfacefollows Langmuir adsorption isotherm. The adsorption process is a spontaneous and exothermicprocess accompanied with the reduction of entropy. SEM investigations proved the formationof protective layers on the alloy surface after immersion in the solution and these observationsvalidate the adsorption performance of the inhibitor.

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APA: Copy

GOLSHANI, Z., SHAHIDI ZANDI, M., BAHRAMI, M.J., & HOSSEINI, S.M.A.. (2018). METOCLOPRAMIDE: A NEW AND EFFECTIVE INHIBITOR FOR CORROSION INHIBITION OFMILD STEEL IN 0. 5 M PHOSPHORIC ACID SOLUTION. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), 12(1 ), 61-69. SID. https://sid.ir/paper/180111/en

Vancouver: Copy

GOLSHANI Z., SHAHIDI ZANDI M., BAHRAMI M.J., HOSSEINI S.M.A.. METOCLOPRAMIDE: A NEW AND EFFECTIVE INHIBITOR FOR CORROSION INHIBITION OFMILD STEEL IN 0. 5 M PHOSPHORIC ACID SOLUTION. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC)[Internet]. 2018;12(1 ):61-69. Available from: https://sid.ir/paper/180111/en

IEEE: Copy

Z. GOLSHANI, M. SHAHIDI ZANDI, M.J. BAHRAMI, and S.M.A. HOSSEINI, “METOCLOPRAMIDE: A NEW AND EFFECTIVE INHIBITOR FOR CORROSION INHIBITION OFMILD STEEL IN 0. 5 M PHOSPHORIC ACID SOLUTION,” JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), vol. 12, no. 1 , pp. 61–69, 2018, [Online]. Available: https://sid.ir/paper/180111/en

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