Inhibition of aluminum corrosion in acid solution by mono- and bis-azo naphthylamine dyes. Part 1

Mabrouk, E. M.; Shokry, Hassan; Al-Naja, K.M. Abu

doi:10.30970/cma4.0168

Cited by 13 publications

(9 citation statements)

References 16 publications

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“…Addition in concentration of the inhibitor reduces the RN, and also increased concentration enhances the inhibition efficiency. 17 Maximum inhibition efficiency of 86.81 % was attained at 0.9 g L -1 of inhibitor.…”

Section: Thermometric Results Of the Corrosion Inhibition Processmentioning

confidence: 91%

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Optimization and Electrochemical Study on the Control of Mild Steel Corrosion in Hydrochloric Acid Solution with Bitter Kola Leaf Extract as Inhibitor

et al. 2018

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Response surface methodology was applied to predict the optimum control of mild steel corrosion in acid medium with bitter kola leaf extract as inhibitor. The experiment was carried out to investigate the mutual interactions between the considered independent variables and the expected responses. Thermometric, gravimetric, potentiodynamics polarization and electrochemical impedance spectroscopy were used in the corrosion inhibition study. As a supplementary technique, infrared spectroscopy was used to analyze the pure extract and corrosion products and it was observed that some peaks shifted while some disappeared. Inhibition efficiencies of 88.24 %, 86.81 %, 90 %, 89.5 % and 85.3 % were obtained from optimization, thermometric, gravimetric, potentiodynamics polarization and electrochemical impedance spectroscopic techniques, respectively. The bitter kola leaf extract behaved as a mixed-mode inhibitor. Application of response surface methodology in this study was found to be good in predicting the optimum range for controlling of metal corrosion thereby reducing the number of experimental runs.

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Section: Thermometric Results Of the Corrosion Inhibition Processmentioning

confidence: 91%

“…The reaction number (RN) was calculated using Equation (1) as contained in other similar protocols. [17][18]…”

Section: Thermometric Approachmentioning

confidence: 99%

Optimization and Electrochemical Study on the Control of Mild Steel Corrosion in Hydrochloric Acid Solution with Bitter Kola Leaf Extract as Inhibitor

et al. 2018

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“…Thermometric, gravimetric and potentiodynamic polarization methods were used in the corrosion inhibition study. The method of the thermometric measurements used by previous authors was adopted with slight modification [9,10]. The inhibitor efficiency was determined using Equation (2).…”

Section: Experimental Methodsmentioning

confidence: 99%

Study of Bitter Leaves Extract as Inhibitive Agent in HCl Medium for the Treatment of Mild Steel through Pickling

Onukwuli¹,

Omotioma²

2019

Port. Electrochim. Acta

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Bitter leaves extract as inhibitive agent in HCl medium for the treatment of mild steel through pickling was studied. Thermometric, gravimetric and potentiodynamic polarization methods were employed in the corrosion inhibition study. The bitter leaves extract was analyzed using gas chromatography-mass spectrometer. The analysis of the extract revealed the presence of C6H8O (96 g/mole: 2,4-Hexadienal); C7H12 (96 g/mole: 3,4-Heptadiene; 1,3-Diethylallene) and C10H18O2 (170 g/mole: 2-Decenoic acid) as the predominant chemical constituents. The activation energy for the corrosion inhibition process ranged from 39.831 to 77.533 kJ/mol, while the heat of adsorption ranged from -16.093 to -30.224 kJ/mol. These values showed that exothermic and spontaneous adsorption of the extract on the mild steel followed the mechanism of physical adsorption. Maximum inhibition efficiency of 85.4% was obtained. The extract was highly efficient in the corrosion inhibition function. The plant-based inhibitor of bitter leaves extract is a suitable additive for pickling, cleaning and descaling operations.

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“…Thus far, various techniques have been employed to monitor the corrosion of metals, viz the weight loss method, hydrogen evolution / gasometric methods, thermometric methods, theoretical and electrochemical methods, etc. [11][12][13][14]. The experimental model developed for this study was implemented using the weight loss method.…”

Section: Methodsmentioning

confidence: 99%

Amodiaquine drug as a corrosion inhibitor for mild steel in 0.1M HCl solution

Akpan¹,

Offiong²

2014

Chem. Met. Alloys

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The inhibition effect of an environmentally friendly and cost-effective drug, amodiaquine, on the corrosion of mild steel in an acidic medium was studied by the weight loss method at room temperature. The study revealed that the test drug has an inhibitory action on the corrosion of mild steel in the investigated medium. The inhibition efficiency was found to increase with increasing inhibitor concentration. Plots of the concentration of metal versus time indicate first-order kinetics for the inhibition process. It was also found that amodiaquine adsorbs according to a Langmuir's adsorption isotherm. Attempts were made to correlate the chemical structure and the inhibition mechanism.

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Inhibition of aluminum corrosion in acid solution by mono- and bis-azo naphthylamine dyes. Part 1

Cited by 13 publications

References 16 publications

Optimization and Electrochemical Study on the Control of Mild Steel Corrosion in Hydrochloric Acid Solution with Bitter Kola Leaf Extract as Inhibitor

Optimization and Electrochemical Study on the Control of Mild Steel Corrosion in Hydrochloric Acid Solution with Bitter Kola Leaf Extract as Inhibitor

Study of Bitter Leaves Extract as Inhibitive Agent in HCl Medium for the Treatment of Mild Steel through Pickling

Amodiaquine drug as a corrosion inhibitor for mild steel in 0.1M HCl solution

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