Mechanism of Corrosion and Corrosion Inhibition of Tin in Aqueous Solutions Containing Tartaric Acid

El-Sherif, Rabab M.; Badawy, Waheed A.
December 2011
International Journal of Electrochemical Science;Dec2011, Vol. 6 Issue 12, p6469
Academic Journal
The electrochemical behavior of tin metal in tartaric acid solutions of different concentrations was investigated. Some amino acids, namely, alanine, glycine, glutamic acid and histidine were used as environmentally safe inhibitors for the tin dissolution process. Different electrochemical techniques including, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) were used. The metal surface was examined via scanning electron microscopy (SEM). The E/I curves showed that the anodic behavior of tin exhibits active/passive transition. The active dissolution of tin was increased by increasing tartaric acid concentration. Glycine was found to give the highest corrosion inhibition efficiency at a concentration of 0.02 mol dm-3. The corrosion inhibition process is based on the adsorption of the amino acid molecules on the metal surface. The adsorption process was found to obey the Freundlich isotherm, and the adsorption of glycine on Sn has an adsorption free energy of -10.2 kJ/mol which reveals physical adsorption of the amino acid molecules on the metal surface. The experimental impedance data are in good agreement with the polarization experiments. An equivalent circuit model was proposed for fitting of the experimental impedance data, and to simulate the electrode/electrolyte interface.


Related Articles

  • The Performance of Zinc Sacrificial Anode in Simulating Marine Fouling Environment. Jie Zhang; Caixia Sun; Zhenhua Yu; Jianbo Cheng; Weizuo Li; Jizhou Duan // International Journal of Electrochemical Science;2014, Vol. 9 Issue 10, p5712 

    Zinc sacrificial anodes with excellent merits are widely used in the marine cathodic protection of steel structures being suffered marine biofoulings. It is important to study the property of zinc anodes in marine fouling environment. However, it is very difficult to study the effect of...

  • Effect of Current Density on the Corrosion Protection of Poly(o-toluidine)-coated Stainless Steel. Ganash, Aisha // International Journal of Electrochemical Science;2014, Vol. 9 Issue 7, p4000 

    This study examines the use of poly(o-toluidine) (POT) coatings for the corrosion protection of type-304 austenitic stainless steel (SS) in natural seawater. The POT coating was synthesized on the SS substrates from an aqueous solution of H2SO4under galvanostatic conditions using various current...

  • Metal Contamination in Biopharmaceutical Drugs. Stellmack, Mary; Rhodes, Kent // Contract Pharma;Oct2010, Vol. 12 Issue 8, p84 

    The article focuses on the detection of metal contamination in biopharmaceutical drugs. It says that solid and liquid drugs are examined in a microanalysis laboratory with the naked eye first and then through stereomicroscope. It mentions the use of scanning electron microscopy (SEM) and...

  • NANOCOMPOSITE COATING FOR IMPROVED CORROSION RESISTANCE. CHANDRA SEKHAR, MADUNURI; RAMANA, M. V. // International Journal of Engineering Science & Technology;Jul2012, Vol. 4 Issue 7, p3118 

    Zn-Mg-ZnO nanocomposite electrodeposits have better corrosion resistance to sodium chloride in the atmospheric environment and better than that of other zinc alloys of equal thickness and therefore, provide a better alternative for corrosion protection. Nano zinc coatings are deposited on mild...

  • Adsorption and Corrosion Inhibition Behavior of Polyethylene Glycol and Surfactants Additives on Mild Steel in HSO. Mobin, M.; Khan, M. // Journal of Materials Engineering & Performance;Jan2014, Vol. 23 Issue 1, p222 

    The adsorption and corrosion inhibition behaviors of polyethylene glycol (PEG) alone and in the presence of surfactants sodium dodecyl benzene sulfonate and cetyltrimethyl ammonium bromide on mild steel in 0.1 M HSO in temperature range of 30-60 °C was investigated using weight loss method,...

  • EVALUACIÓN MICROESTRUCTURAL DE RECUBRIMIENTOS DE Zn 4Al, Zn 6Al Y Zn 10Al SOBRE UN ACERO SAE 1020 SOMETIDO A ENSAYOS DE TRACCIÓN. González, Gerardo; Pacheco, Anahan // Acta Microscopica;2010, Vol. 19 Issue 1, p78 

    Nowadays, Zinc Aluminum Alloys (ZA) are generally used for galvanization, in order to prevent the attack produced by corrosion. In this investigation, the microstructure of deposited layers of ZA on SAE 1020 steel is evaluated, as well as its behavior when submitted to tensile tests. For this...

  • Surface treatment with amino acids of porous collagen based scaffolds to improve cell adhesion and proliferation. Rouabhia, Mahmoud; Mighri, Nabila; Park, Hyun Jin; Mao, Jifu; Zhang, Ze; Mighri, Frej; Ajji, Abdallah // Canadian Journal of Chemical Engineering;Oct2018, Vol. 96 Issue 10, p2236 

    Abstract: The purpose of this study was to improve the biocompatibility of glutaraldehyde (GA) cross‐linked chitosan coated collagen scaffold for cartilage tissue regeneration. In order to prevent the potential toxicity of GA, we treated the designed scaffold with either glutamic acid or...

  • Corrosion inhibition of carbon steel in 0.5 M NaCl aqueous solution by humid air plasma treatment. Ghali, Noureddine; Addou, Ahmed; Mutel, Brigitte; Benstaali, Baghdad; Bentiss, Fouad; Brisset, Jean-Louis // European Physical Journal - Applied Physics;Mar2013, Vol. 61 Issue 3, p00 

    Carbon steel (C75) is exposed to highly reactive species such as hydroxyl radicals OH created by a gliding arc discharge (GAD) in humid air at atmospheric pressure. The protective properties of carbon steel treated by GAD are studied versus different treatment times (t) and for an immersion in...

  • Inhibitive Effects by Some Benzothiazole Derivatives on Mild Steel Corrosion in 1 N HCl. Patel, N. S.; Beranek, P.; Nebyla, M.; Přibyl, M.; Šnita, D. // International Journal of Electrochemical Science;2014, Vol. 9 Issue 7, p3951 

    The inhibition effect of some Benzothiazole derivatives 1,3-benzothiazol-2-amine (BTA), 6-methyl-1,3-benzothiazol-2-amine (MBTA) and 2-amino-1,3-benzthiazole-6-thiol (TBTA) against mild steel corrosion in 1 N HCl solutions were evaluated using conventional weight loss, potentiodynamic...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics