Corrosion Inhibition of Zinc Using Some Phenylthiazole Derivatives in Hydrochloric acid Solutions

Authors

  • Abdel Aziz Fouda El-Mansoura University, El-Mansoura-35516
  • A. Abdel Nazeerb National Research Centre, Dokki, Cairo-12622
  • K.M.Abdel Khalek El-Mansoura University, El-Mansoura-35516

DOI:

https://doi.org/10.24297/jac.v4i2.2704

Keywords:

Acid corrosion, Zinc, Phenylthiazole derivatives, EIS, EFM

Abstract

The inhibitive action of some phenylthiazole derivatives namely: 2-acetylamino-5-p-bromophenylazo-4-phenylthiazole (BPT), 2-acetylamino-5-p-methylphenylazo-4-phenylthiazole (MPT), 2-acetylamino-5-p-methoxyphenylazo-4-phenylthiazole (XPT) and 2-acetylamino-5-p-nitrophenylazo-4-phenylthiazole (NPT), on zinc corrosion in 0.2 M HCl  has been studied using weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS)and electrochemical frequency modulation (EFM) measurements. The results showed that the dissolution rate of zinc decreases with increasing the phenylthiazole derivatives concentration and decreases with raising temperature. Polarization curves indicated that the studied inhibitors act as mixed-type inhibitors. The adsorption of the investigated compounds follows Langmuir adsorption isotherm model. The thermodynamic parameters of adsorption and corrosion processes were determined and discussed. 

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Author Biographies

Abdel Aziz Fouda, El-Mansoura University, El-Mansoura-35516

Department of Chemistry, Faculty of Science

A. Abdel Nazeerb, National Research Centre, Dokki, Cairo-12622

Electrochemistry and Corrosion Lab.

K.M.Abdel Khalek, El-Mansoura University, El-Mansoura-35516

Department of Chemistry, Faculty of Science

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Published

2008-08-08

How to Cite

Fouda, A. A., Nazeerb, A. A., & Khalek, K. (2008). Corrosion Inhibition of Zinc Using Some Phenylthiazole Derivatives in Hydrochloric acid Solutions. JOURNAL OF ADVANCES IN CHEMISTRY, 4(2), 425–440. https://doi.org/10.24297/jac.v4i2.2704

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Articles