Corrosion inhibition of steel by benzotriazole in sulphuric acid

Gomma, G. K.

doi:10.1016/s0254-0584(98)00043-1

Cited by 69 publications

(33 citation statements)

References 18 publications

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“…Rawat, 2002), this can be attributed to cooperative adsorption between I -ions and Aloe cations. This can explained as: the attraction between I -ions and Aloe molecules lead to formation of ionic complex ExI -adsorbed on Aluminium surface by columbic attraction which lead to decrease the rate of corrosion by stabilisation of adsorbed anions and increase the covered area and increase the inhibition efficiency (A. Mohamed, T. Rakha, M. Moussa, 1990)( G. K. Gomma, 1998)( N. S. Rawat and G. Udayabhanu, 1987). The following reaction can be suggested as:…”

Section: Corrosion Inhibition Of Aluminium In 05m Hcl At Different Cmentioning

confidence: 99%

Aloe Plant Extract as Environmentally Friendly Inhibitor on the Corrosion of Aluminum in Hydrochloric Acid in Absence and Presence of Iodide Ions

Al-Turkustani

Arab

Al-Dahiri

2010

MAS

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The study shows that the corrosion of Aluminum increases with increasing HCl concentration which indicates the dependence of Aluminum corrosion on the concentration of HCl .The inhibition efficiency of the corrosion by Aloe extract was found to increase with the increase of Aloe extract concentration. Its inhibitive action from chemical (hydrogen evolution and mass loss) and electrochemical (polarization and impedance) was in good agreement. Also, it was found that Aloe plant act as mixed type inhibitor. The corrosion of Aluminum is mainly controlled by a charge transfer process. The inhibition action occurred through the adsorption of the extract on Aluminum surface, the adsorption process follows Freundlish adsorption isotherm. The addition of iodide ions enhances the inhibition efficiency for Aloe plant extract.

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Section: Corrosion Inhibition Of Aluminium In 05m Hcl At Different Cmentioning

confidence: 99%

Aloe Plant Extract as Environmentally Friendly Inhibitor on the Corrosion of Aluminum in Hydrochloric Acid in Absence and Presence of Iodide Ions

Al-Turkustani

Arab

Al-Dahiri

2010

MAS

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“…One of the most widespread and inexpensive ways to control metallic corrosion in such applications is by using corrosion inhibitors. Compounds such as chromates, phosphates and benzotriazole (BTAH) have being efficiently employed to mitigate corrosion damage in acidic media [1][2][3] . However, due to their toxicity and environmental impact, in the last decade, substitution of these compounds by corrosion inhibitors derived from plants, i.e.…”

Section: Introductionmentioning

confidence: 99%

Study and Assessment of the Efficiency of the Cocoa Bark Extracted from the Theobroma Cacao as an Inhibitor of the Corrosion of Carbon Steel in Substitution of Benzotriazole

et al. 2017

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Corrosion represents high losses to the economy, therefore, researches on the minimization of its damages in materials, mainly the metallic ones, are necessary. Among the various alternatives of protection against corrosion, there is the application of corrosion inhibitors that can minimize or even stop the corrosive process of metallic materials. However, at present, substances usually used as corrosion inhibitors present high toxicity, being considered harmful components to the environment and to human health. Therefore, there is an urgent need for studies on viable corrosion inhibitors, by considering not only economic but also environmental costs. The present work studied the use of cocoa bark extract (Theobrama cacao L), for possible replacement of benzotriazole (BTAH) in the corrosion inhibition of ASTM 1020 carbon steel (CS-ASTM 1020) in 18.23 g.L -1 hydrochloric acid media. Weight loss measurements, anodic and cathodic potentiodynamic polarization curves and electrochemical impedance experiments were carried out. The results showed that the addition of the extract to the electrolyte effectively hinder the corrosion process and indicated its adsorption on the electrode surface. In addition, the inhibiting efficiency of the cocoa bark extract was only slightly inferior to BTAH, showing that it can be an environmentally friendly option to toxic inhibitors.

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“…Numerous organic substances containing polar functions with nitrogen, oxygen, and/or sulphur atoms in a conjucated system have been reported to exhibit good inhibiting properties. [1][2][3][4][5] Aliphatic and aromatic amines as well as nitrogen heterocyclic compounds were studied as corrosion inhibitors for dissolution of Al in acidic media. [6][7][8][9][10][11][12][13][14] Generally, it has been assumed that the first stage in the action mechanism of the inhibitors in aggressive acid media is the adsorption of the inhibitors onto the metal surface.…”

Section: Introductionmentioning

confidence: 99%

Effect of β-Blocker Inhibitors on Aluminum Corrosion

Fouda¹,

Elewady²,

Shalabi³

2011

Journal of the Korean Chemical Society

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ABSTRACT. Corrosion of aluminum in 0.1 M HCl solution in the absence and presence of β-blocker inhibitors (atenolol, propranolol, timolol and nadolol) was investigated using weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The inhibition efficiency increased with inhibitor concentration and decreased with rise of temperature. Potentiodynamic polarization curves revealed that they acted as cathodic inhibitors. Some thermodynamic parameters were calculated and discussed. All inhibitors were adsorbed on Al surface obeying Frumkin isotherm. All EIS tests exhibited one capacitive loop which indicates that the corrosion reaction is controlled by charge transfer process. The inhibition efficiencies of all test methods were in good agreement.

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Corrosion inhibition of steel by benzotriazole in sulphuric acid

Cited by 69 publications

References 18 publications

Aloe Plant Extract as Environmentally Friendly Inhibitor on the Corrosion of Aluminum in Hydrochloric Acid in Absence and Presence of Iodide Ions

Aloe Plant Extract as Environmentally Friendly Inhibitor on the Corrosion of Aluminum in Hydrochloric Acid in Absence and Presence of Iodide Ions

Study and Assessment of the Efficiency of the Cocoa Bark Extracted from the Theobroma Cacao as an Inhibitor of the Corrosion of Carbon Steel in Substitution of Benzotriazole

Effect of β-Blocker Inhibitors on Aluminum Corrosion

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