Inhibitive properties of 2,5-bis(n-methylphenyl)-1,3,4-oxadiazole and biocide on corrosion, biocorrosion and scaling controls of brass in simulated cooling water

Rochdi, A.; Kassou, O.; Dkhireche, N.; Touir, R.; Bakri, M. El; Touhami, M. Ebn; Sfaira, M.; Mernari, B.; Hammouti, B.

doi:10.1016/j.corsci.2013.11.067

Cited by 100 publications

(40 citation statements)

References 46 publications

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“…14), it is noted that the diameter loops increase with immersion time. This evolution suggests a strong inhibition of the dissolution processes occurring on the surface [52,53].…”

Section: Effect Of Immersion Time On the Formulation 2 Performancementioning

confidence: 97%

Corrosion Inhibition Study of Brass in Simulated Cooling Water by Triazole Derivatives, Cetyltrimethylammonium Bromide and Their Mixture

et al. 2014

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The effect of triazole (TR), 3-amino-1,2,4-triazole (ATA) and cetyltrimethylammonium bromide (CTAB) on the inhibition of brass corrosion in simulated cooling water system has been studied using electrochemical measurements, scanning electron microscopy (SEM) observations and energy dispersive X-ray (EDX) analysis. The potentiodynamic polarization study reveals that these inhibitors inhibit both cathodic and anodic reactions, indicating a mixed-type control of inhibition and their inhibition depend on the nitrogen number in their structure. It shows that the ATA is the best inhibitor. The interference between CTAB and TR derivatives against corrosion has been also studied. So, a large passive current plate is observed directly from the corrosion potential in the presence of formulation. In addition, the operational parameters effect on the performance of this formulation is also investigated. It shows that its inhibition efficiency increases with pH, immersion time and the presence of corrosion products and takes its performance by increasing in temperature. The SEM/EDX data confirm that the formulation is a corrosion and scale inhibitor.

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“…14), it is noted that the diameter loops increase with immersion time. This evolution suggests a strong inhibition of the dissolution processes occurring on the surface [52,53].…”

Section: Effect Of Immersion Time On the Formulation 2 Performancementioning

confidence: 97%

Corrosion Inhibition Study of Brass in Simulated Cooling Water by Triazole Derivatives, Cetyltrimethylammonium Bromide and Their Mixture

et al. 2014

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“…8. This model was used in our previous works to describe the behavior of copper and brass in cooling water solution, with or without inhibitors (Elhousni et al 2016;El Bakri et al 2016;Rochdi et al 2014). In this model, R s is the solution resistance, R ct is the charge transfer resistance, Q dl corresponds to the capacitance of the double layer, and the R ad and the element Q ad correspond to the film formation of corrosion and scale products.…”

Section: Effect Of Temperature Solutionmentioning

confidence: 99%

Corrosion and scale studies of copper used in Moroccan industrial cooling water systems

Elhousni

Galai

ElKamraoui³

et al. 2017

Euro-Mediterr J Environ Integr

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The corrosion and scale behavior of copper in industrial cooling water system were investigated via electrochemical measurements, ionic chromatography, SEM/EDAX, and X-ray diffraction analyses. It was found that the studied water has a corrosion and scale character. The EDAX and XRD analyses indicated that the major corrosion and scale products were the CuO 2 and CaCO 3 , respectively. In addition, the middle Mueller-Hinton test was also employed to evaluate the development of microorganisms for copper in make-up water solution. It is noted that bacterial colonies appeared after immersion of samples in make-up water, indicating that this water develops bacterial colonization. Finally, the influence of some operating parameters on the corrosion and scale rate was studied. It was shown that the scale rate increases with pH, temperature, and the addition of chloride and sulfide ions. It was also found that the corrosion rate increases with temperature and chloride ions and decreases with pH and immersion time.

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“…The cathodic Tafel slope (β c ) show slight changes with the addition of (EM1), which suggests that the inhibiting action occurred by simple blocking of the available cathodic sites on the metal surface, which lead to a decrease in the exposed area necessary for hydrogen evolution and lowered the dissolution rate with increasing inhibitor concentration. From Table 4, it is clear that increasing concentration of the inhibitor (EM1) resulted in a decrease in corrosion current densities (i corr ) and an increase in inhibition efficiency (IE %), reaching its maximum value, 96%, at 10 -3 M. The parallel cathodic Tafel plots obtained in Figure 5 indicate that the hydrogen evolution is activation controlled and the reduction mechanism is not affected by the presence of inhibitor [18][19][20][21].…”

Section: Polarization Measurementsmentioning

confidence: 80%

Inhibition effect of 1,1´-(pyridine-2,6-dihylbis(methylene))bis(5- methyl-1-H-pyrazole-3-carboxylic acid) on the corrosion of mild steel in 1 M HCl. Part A: Experimental study

2017

Int. J. Corros. Scale Inhib.

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The inhibitory effect of 1,1´-(pyridine-2,6-dihylbis(methylene))bis(5-methyl-1-H-pyrazole-3-carboxylic acid) (EM1) was estimated on the corrosion of mild steel in 1 M hydrochloric acid using weight loss, Electrochemical Impedance Spectroscopy (EIS) and Tafel polarization curves. Inhibition was found to increase with increasing concentration of inhibitor studied. The adsorption of inhibitor molecules on mild steel surface was found to be spontaneous and obeyed the Langmuir adsorption isotherm. Values of inhibition efficiency calculated from weight loss, Tafel polarization curves, and EIS are in good agreement. Polarization curves showed that EM1 behaves as mixed type inhibitor in 1 M HCl medium. The results obtained showed that EM1 could serve as an effective inhibitor of the corrosion of mild steel in hydrochloric acid solution.

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Inhibitive properties of 2,5-bis(n-methylphenyl)-1,3,4-oxadiazole and biocide on corrosion, biocorrosion and scaling controls of brass in simulated cooling water

Cited by 100 publications

References 46 publications

Corrosion Inhibition Study of Brass in Simulated Cooling Water by Triazole Derivatives, Cetyltrimethylammonium Bromide and Their Mixture

Corrosion Inhibition Study of Brass in Simulated Cooling Water by Triazole Derivatives, Cetyltrimethylammonium Bromide and Their Mixture

Corrosion and scale studies of copper used in Moroccan industrial cooling water systems

Inhibition effect of 1,1´-(pyridine-2,6-dihylbis(methylene))bis(5- methyl-1-H-pyrazole-3-carboxylic acid) on the corrosion of mild steel in 1 M HCl. Part A: Experimental study

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