Schiff' Bases as Corrosion Inhibitor for Aluminum Alloy in Hydrochloric Acid Medium
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R. S. Abdel Hameed
Abstract
Three Schiff' bases (SB) were synthesized, characterized and evaluated as corrosion inhibitor for aluminum in 1.0 M HCl using chemical (weight loss) and electrochemical (open circuit potential, potentiodynamic polarization, and electrochemical impedance) techniques. The influence of temperature and concentration was investigated. It has been shown that the efficiency of corrosion inhibition increases with the inhibitor concentration and decreases with increasing temperature. The addition of the inhibitor molecules to the corrosive medium shifts the corrosion potential (Ecorr) to the nobler direction. It has been found that the adsorption of the used compounds obeys the Langmuir adsorption isotherm.
Kurzfassung
Es wurden drei Schiff'sche Basen (SB) synthetisiert, charakterisiert und als Korrosionsinhibitor für Aluminium in 1,0 M HCl unter Verwendung von chemischen (Gewichtsverlust) und elektrochemischen (Leerlaufpotential, potentiodynamische Polarisation und elektrochemische Impedanz) Techniken bewertet. Dabei wurde der Einfluss von Temperatur und Konzentration untersucht. Die Polarisationskurven machen deutlich, dass die inhibierende Wirkung der SB vom gemischten Typ ist. Die Zugabe der Inhibitormoleküle zum korrosiven Medium verschiebt das Korrosionspotential (Ecorr) in die edlere Richtung. Es wurde festgestellt, dass die Adsorption der verwendeten Verbindungen der Langmuir-Adsorptionsisotherme gehorcht.
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© 2019, Carl Hanser Publisher, Munich
Artikel in diesem Heft
- Contents/Inhalt
- Contents
- Review Article
- Characteristic and Application of Anionic Dimeric Surfactants: A Review
- Body Care
- Reduction of Irritation Potential Caused by Anionic Surfactants in the Use of Various Forms of Collagen Derived from Marine Sources in Cosmetics for Children
- Environmental Chemistry
- Optimization of Biosorption Conditions for Surfactant Induced Decolorization by Anaerobic Sludge Granules
- Evaluation of Polyether Copolymer as Green Scale and Corrosion Inhibitor in Seawater
- Physical Chemistry
- Schiff' Bases as Corrosion Inhibitor for Aluminum Alloy in Hydrochloric Acid Medium
- Study on the Synergism of Binary Surfactant Mixtures containing N-lauroyl-N-methyl Taurine Sodium
- Effect of Spacer on Surface Activity and Foam Properties of Betaine Gemini Surfactants
- Study on the Complex System of Sodium Lauryl Diphenyl Ether Disulfonate and Dodecyl Dimethyl Hydroxyethyl Ammonium Chloride
- Synthesis
- Synthesis and Properties of 9,10-Dihydroxystearic Acid Ethoxylate
- Synthesis and Properties of Lauryl Phosphate Monoester
- Novel Surfactants
- Dehydroabietyl Glycidyl Ether Grafted Hydroxyethyl Chitosan: Synthesis, Characterization and Physicochemical Properties
Artikel in diesem Heft
- Contents/Inhalt
- Contents
- Review Article
- Characteristic and Application of Anionic Dimeric Surfactants: A Review
- Body Care
- Reduction of Irritation Potential Caused by Anionic Surfactants in the Use of Various Forms of Collagen Derived from Marine Sources in Cosmetics for Children
- Environmental Chemistry
- Optimization of Biosorption Conditions for Surfactant Induced Decolorization by Anaerobic Sludge Granules
- Evaluation of Polyether Copolymer as Green Scale and Corrosion Inhibitor in Seawater
- Physical Chemistry
- Schiff' Bases as Corrosion Inhibitor for Aluminum Alloy in Hydrochloric Acid Medium
- Study on the Synergism of Binary Surfactant Mixtures containing N-lauroyl-N-methyl Taurine Sodium
- Effect of Spacer on Surface Activity and Foam Properties of Betaine Gemini Surfactants
- Study on the Complex System of Sodium Lauryl Diphenyl Ether Disulfonate and Dodecyl Dimethyl Hydroxyethyl Ammonium Chloride
- Synthesis
- Synthesis and Properties of 9,10-Dihydroxystearic Acid Ethoxylate
- Synthesis and Properties of Lauryl Phosphate Monoester
- Novel Surfactants
- Dehydroabietyl Glycidyl Ether Grafted Hydroxyethyl Chitosan: Synthesis, Characterization and Physicochemical Properties
