Inhibition Effect of Glycerol on the Corrosion of Copper in NaCl Solutions at Different pH Values. (30th June 2014)

• Record Type: Journal Article
• Authors: Chi-Ucán, Santos Lorenzo; Castillo-Atoche, Andrea; Castro Borges, Pedro; Manzanilla-Cano, José Antonio; González-García, Gerardo; Patiño, Rodrigo; Díaz-Ballote, Luis
• Other Names: Zhou Ying Academic Editor.
• Is Part Of: Journal of chemistry. Volume 2014(2014)
• Publication Date: 2014-06-30
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1155/2014/396405
• Languages: English
• ISSNs: 2090-9063

Abstract

Abstract : The inhibitory effect of glycerol on copper corrosion in aerated NaCl (0.5 M) solutions at three pH values (4, 7, and 10) was evaluated. Inhibition efficiency was assessed with conventional electrochemical techniques: open circuit potential, potentiodynamic polarization, and electrochemical impedance analysis. Glycerol reduced the corrosion rate of copper in NaCl solutions. The best inhibition effect (η ≈ 83 % ) was produced in alkaline (pH 10) chloride media. This effect can be ascribed to increased viscosity and the presence of copper-glycerol complexes.