Corrosion inhibition studies for mild steel in 5.0 M HCl by substituted phenyltetrazole

The inhibition efficiency of three substituted phenyltetrazole compounds, namely 5-(4-chlorophenyl)-1 H -tetrazole (Cl-PT), 5-(4-methoxyphenyl)-1 H -tetrazole (MO-PT), and 5-phenyl-1 H -tetrazole (PT), for mild steel corrosion in 5.0 M HCl solution was\ investigated using weight loss measurements an...

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Bibliographic Details
Published in:Euro-Mediterranean journal for environmental integration 2017-10, Vol.2 (1), p.1, Article 1
Main Authors: El Kacimi, Y., Azaroual, M. A., Touir, R., Galai, M., Alaoui, K., Sfaira, M., Ebn Touhami, M., Kaya, S.
Format: Article
Language:English
Subjects:
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Corrosion
Corrosion inhibitors
Corrosion potential
Earth and Environmental Science
Earth Sciences
Efficiency
Electrochemistry
Electrodes
Environmental Chemistry
Environmental Management
Environmental Science and Engineering
Low carbon steels
Molecular structure
Original Paper
Spectrum analysis
Steel
Substitutes
Tetrazoles
Waste Management/Waste Technology
Waste Water Technology
Water Management
Water Pollution Control
Weight loss measurement
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Summary:The inhibition efficiency of three substituted phenyltetrazole compounds, namely 5-(4-chlorophenyl)-1 H -tetrazole (Cl-PT), 5-(4-methoxyphenyl)-1 H -tetrazole (MO-PT), and 5-phenyl-1 H -tetrazole (PT), for mild steel corrosion in 5.0 M HCl solution was\ investigated using weight loss measurements and electrochemical study. It is showed that these compounds are good inhibitors for mild steel corrosion in 5.0 M HCl solution which act as cathodic type inhibitors. So, the inhibition efficiency was increased with inhibitor concentration in the order of Cl-PT > MO-PT > PT which depended on their molecular structures. It is found also that these compounds toke its performance at different temperatures range from 298 to 328 K. In addition, the thermodynamic adsorption parameters at different concentrations were investigated and discussed. Finally, it is seen that the inhibition efficiency of the studied compounds increased with immersion time to reach a maximum at 12 h.
ISSN:2365-6433
2365-7448
DOI:10.1007/s41207-016-0011-8