Inhibition of Acid Corrosion of Pure Aluminum with 5-Benzylidine-1-Methyl-2-Methylthio-Imidazole-4-One

El-Mahdy, Gamal A.; Mahmoud, S. S.

doi:10.5006/1.3293609

Cited by 35 publications

(22 citation statements)

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“…It is obvious that the weight loss of 1018 carbon steel decreases and is much lower than that obtained in the blank solution. The linearity obtained indicates the absence of insoluble surface film during corrosion and that the inhibitors were first adsorbed onto the surface and thereafter impede the corrosion process [18]. The calculated values of inhibition efficiency (IE) and surface coverage  from the weight loss measurements are listed in Table 1.…”

Section: Compound IIImentioning

confidence: 99%

Corrosion inhibition of 1018 carbon steel in hydrochloric acid using Schiff base compounds

Zaafarany¹

2014

Int. J. Corros. Scale Inhib.

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The inhibition effect of some Schiff base compounds toward the corrosion of 1018 carbon steel in hydrochloric acid solution was studied using weight loss, galvanostatic polarization, and electrochemical impedance spectroscopy measurements. The percentage inhibition efficiency increased with increasing inhibitor concentration and with decreasing temperature. The polarization measurements indicated that the inhibitors are of mixed type and inhibit corrosion by adsorption on the steel surface. The adsorption process is described by the Freundlich adsorption isotherm. The activation energy and some activation thermodynamic parameters were calculated and explained. From the impedance data it is found that the corrosion of carbon steel is controlled by the charge transfer process at all concentrations of inhibitors.

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Section: Compound IIImentioning

confidence: 99%

Corrosion inhibition of 1018 carbon steel in hydrochloric acid using Schiff base compounds

Zaafarany¹

2014

Int. J. Corros. Scale Inhib.

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“…As can be seen from the plots of this figure that in the presence of the extract the weight loss varies linearly with time, and it is lower than obtained in the free solution. These linear plots indicate the absence of insoluble surface film during corrosion, and the inhibitor was first adsorbed onto the metal surface and thereafter, inhibits the corrosion process (20) . Also it is obvious that the C.R decreases with increasing the concentration of the inhibitor.…”

Section: Resultsmentioning

confidence: 95%

“…The interaction between the inhibitor molecules and the metal surface can be provided by the adsorption isotherm. The Kinetic thermodynamic model (20) (El-Awady isotherm) has been found to give the best fit to the weight loss results of the inhibitor under test, by the following relation :…”

Section: Resultsmentioning

confidence: 99%

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Ziziphus Spina – Christi as Green Corrosion Inhibitor for Al-Cu Alloy in Acidic and Alkaline Media.

Motaal

Al-Malki

2010

Al-Azhar Bulletin of Science

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Ziziphus Spina -Christi extract (ZSC) was investigated as green corrosion inhibitor for Al-Cu alloy in acidic and alkaline media using chemical and electrochemical techniques. proposed physisorption mechanism. Potentiodynamic polarization measurements showed that the presence of ZSC extract in both media affects mainly the cathodic process, and decreases the corrosion rate to a great extent. The results obtained from weight loss and thermometric measurements are in a good agreement with potentiodynamic polarization measurements.

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“…It is obvious that the weight loss of Al in presence of the inhibitor varies linearly with time, and is much lower than that obtained in the blank solution. The linearity obtained indicates the absence of insoluble surface film during corrosion and that the inhibitors were first adsorbed onto the surface and thereafter impede the corrosion process [10]. The calculated values of inhibition efficiency (IE) from weight loss measurements are listed in Table 1.…”

Section: Experimental Methodsmentioning

confidence: 99%

Mono Azo Dyes Compounds as Corrosion Inhibitors for Dissolution of Aluminium in Sodium Hydroxide Solutions

Al-Juaid¹

2007

Port. Electrochim. Acta

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The effect of some mono azo dyes compounds on the dissolution of aluminium in 0.01 M NaOH solutions was studied using weight loss and galvanostatic polarization techniques. The percentage inhibition efficiency was found to increase with increasing concentration of inhibitor and with decreasing temperature. The inhibition mechanism was discussed on the basis of the formation of complex compound adsorbed on the metal surface. The adsorption process follows Frumkin isotherm. The effect of temperature on the rate of corrosion in the absence and presence of these compounds was also studied. Some activated thermodynamic parameters were computed.Keywords: mono azo dyes, aluminium, inhibitors.Introduction Aluminium (Al) and its alloys are widely used in technology because of their low density, pleasing appearance, and corrosion resistance. For these reasons, the corrosion inhibition of Al in aqueous solution, has attracted the attention of many investigators [1][2][3][4][5][6][7]. Inhibition of metal corrosion by organic compounds is a result of adsorption of organic molecules or ions at the metal surface forming a protective layer. This layer reduces or prevents the corrosion of the metal. The extent of adsorption depends on the nature of the metal, the metal surface condition, the mode of adsorption, the chemical structure of the inhibitor, and the type of corrosive media [8]. The aim of the present work is to study the inhibitive action of some mono azo dyes based on 1,5-dihydroxynanphthalene toward the corrosion inhibition of aluminium in 0.01 M NaOH solution using weight loss and galvanostatic polarization techniques. The effect of temperature on the dissolution of

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Inhibition of Acid Corrosion of Pure Aluminum with 5-Benzylidine-1-Methyl-2-Methylthio-Imidazole-4-One

Cited by 35 publications

References 0 publications

Corrosion inhibition of 1018 carbon steel in hydrochloric acid using Schiff base compounds

Corrosion inhibition of 1018 carbon steel in hydrochloric acid using Schiff base compounds

Ziziphus Spina – Christi as Green Corrosion Inhibitor for Al-Cu Alloy in Acidic and Alkaline Media.

Mono Azo Dyes Compounds as Corrosion Inhibitors for Dissolution of Aluminium in Sodium Hydroxide Solutions

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