Effect of temperature on the inhibition of the acid corrosion of steel by benzimidazole derivatives

Mahgoub, F. M.; Al-Nowaiser, F. M.; Alsudairi, Amell

doi:10.1134/s2070205111030087

Cited by 19 publications

(9 citation statements)

References 23 publications

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“…As a result of the effective and spontaneous adsorption of the MBZ molecules to the surface of mild steel in H 2 SO 4 , K ads values were high and negative values were obtained for Δ G ads ° Through the magnitude of Δ G ads °, the adsorptive nature was determined. However, for physical adsorption mechanism, values of about −20 kJ· mol −1 and less are associated, while values of −40 kJ· mol −1 and above are usually considered to be chemisorption [ 13 , 24 , 28 , 30 ]. The results in Table 5 revealed that the computed values of Δ G ads ° for the inhibitor ranged between −17.76 to −21.48 kJ·mol −1 and −11.33 to −15.25 kJ·mol −1 at 303 K and 333 K, respectively.…”

Section: Resultsmentioning

confidence: 99%

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Performance of Methyl-5-Benzoyl-2-Benzimidazole Carbamate (Mebendazole) as Corrosion Inhibitor for Mild Steel in Dilute Sulphuric Acid

Edoziuno

Adediran

Odoni

et al. 2020

The Scientific World Journal

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The inhibitive effect of mebendazole (MBZ) on the corrosion of low-carbon steel in H2SO4 was investigated by gravimetric and electrochemical techniques as well as examination of specimens in the scanning electron microscope with attached energy dispersive X-ray spectrometer (EDS). From gravimetric analysis, the highest inhibition efficiency of about 96.6% was obtained for 1.0 g of inhibitor in H2SO4 solution at 24 h, while with longer exposure times of between 72 to 120 h, the efficiencies averaged between 92 and 95%. Tafel extrapolations from the polarization curves showed that 1.0 g MBZ gave a maximum inhibition efficiency of approximately 99% for the investigation conducted at 30°C, whereas 1.5 g of MBZ gave a maximum inhibition efficiency of about 85% at 60°C. Inhibition efficiency increased with increasing concentrations of MBZ and decreased at elevated temperatures. The inhibitive action was attributed to physical adsorption of MBZ species on the mild steel surface which followed the Langmuir adsorption isotherm. MBZ performed as a mixed-type inhibitor on mild steel in dilute H2SO4.

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Section: Resultsmentioning

confidence: 99%

“…A review of the literature revealed the use of benzimidazole derivatives as promising corrosion inhibitors for steel in various environments [7,13,[24][25][26][27][28][29][30][31]. Benzimidazole and its derivatives have excellent pharmacological properties such as anti-bacterial, anti-fungal, anti-cancer, anthelminthic, etc.…”

Section: Introductionmentioning

confidence: 99%

Performance of Methyl-5-Benzoyl-2-Benzimidazole Carbamate (Mebendazole) as Corrosion Inhibitor for Mild Steel in Dilute Sulphuric Acid

Edoziuno

Adediran

Odoni

et al. 2020

The Scientific World Journal

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show abstract

“…Gugus atom tersebut berperan sebagai donor elektron pada permukaan logam yang berikatan dengan molekul inhibitor sehingga menyebabkan peningkatan densitas elektron. Peningkatan densitas elektron menyebabkan terjadinya inhibisi korosi (Mahgoub et al, 2011). (Ezeokonkwo et al, 2012).…”

Section: Metode Penelitianunclassified

Pemanfaatan Ekstrak Daun Tembakau sebagai Inhibitor Korosi pada Logam Baja Karbon dan Aluminium

Setiawan¹,

Mayangsari²,

Dermawan³

2018

CHEESA

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<p class="E-JOURNALAbstractBody">Ekstrak daun tembakau dapat dimanfaatkan sebagai inhibitor korosi pada logam baja karbon dan aluminum di dalam larutan HCl. Penelitian ini bertujuan menganalisis pengaruh konsentrasi ekstrak daun tembakau terhadap laju korosi serta efisiensi inhibisi korosi logam baja karbon dan aluminium di dalam media larutan HCl 0,1 M. Laju korosi logam baja karbon dan aluminium dianalisis menggunakan metode polarisasi linear. Hasil penelitian menunjukkan bahwa peningkatan konsentrasi ekstrak daun tembakau dapat menurunkan laju korosi pada logam baja karbon dan aluminium. Laju korosi minimum baja karbon dan aluminium terjadi pada konsentrasi inhibitor sebesar 700 mg/L yaitu masing-masing sebesar 0,940 mm/y dan 0,807 mm/y. Peningkatan konsentrasi inhibitor menyebabkan peningkatan efisiensi inhibisi korosi baja karbon dan aluminium. Hasil SEM menunjukkan bahwa peningkatan konsentrasi inhibitor menyebabkan proteksi korosi semakin tinggi sehingga tingkat degradasi permukaan logam akibat korosi semakin rendah.</p>

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“…while the opposite is the case with physical adsorption, this behavior was discussed on the basis that, such substances were strongly held on the metal surface, sometimes by chemisorption give arise to that, a surface film from the reaction product has formed & the metal′s surface area covered by inhibitor molecules increases as temperature raised. Therefore, the chemisorptive adsorption path is more likely 39 . This due to decrease rate of adsorption inhibitor with equilibrium data approach due to the tests at elevated temperatures according to Hoar & Holliday 40 .…”

Section: 46991]mentioning

confidence: 99%

Vitex agnus castus plant extract as Safe corrosion inhibitor for carbon steel 1018 in 1M hydrochloric acid

2018

jcbsc

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The corrosion inhibition effectiveness of "Vitex agnus castus"(VAC) as corrosion inhibitor for carbon steel (CS) 1018 in 1.0 M HCl was confirmed using chemical and electrochemical methods. The data resulted from the measurements indicated that the inhibition efficiency (%IE) is dependent on both temperature and concentration of the extract. Tafel polarization (TP) data indicated that the extract behaves as mixed kind inhibitor. Langmuir's adsorption isotherm was found to be the best fit. Morphology of the surface was examined using scanning electron microscopy (SEM), Fourier transform infrared (FTIR) and atomic force microscopy (AFM) which confirmed the existence of a protective film of extract molecules on CS 1018 surface.

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Effect of temperature on the inhibition of the acid corrosion of steel by benzimidazole derivatives

Cited by 19 publications

References 23 publications

Performance of Methyl-5-Benzoyl-2-Benzimidazole Carbamate (Mebendazole) as Corrosion Inhibitor for Mild Steel in Dilute Sulphuric Acid

Performance of Methyl-5-Benzoyl-2-Benzimidazole Carbamate (Mebendazole) as Corrosion Inhibitor for Mild Steel in Dilute Sulphuric Acid

Pemanfaatan Ekstrak Daun Tembakau sebagai Inhibitor Korosi pada Logam Baja Karbon dan Aluminium

Vitex agnus castus plant extract as Safe corrosion inhibitor for carbon steel 1018 in 1M hydrochloric acid

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