Effect of ethylene diaminetetraacetic acid on the corrosion of aluminum in chloride solutions


ZOR S. , ÖZKAZANÇ H. , BİNGÜL M.

MATERIALS SCIENCE, vol.44, no.6, pp.850-856, 2008 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 44 Issue: 6
  • Publication Date: 2008
  • Doi Number: 10.1007/s11003-009-9140-4
  • Title of Journal : MATERIALS SCIENCE
  • Page Numbers: pp.850-856

Abstract

The potetiondynamic and chronoamperometric methods are used to study the influence of the concentration of ethylene diaminetetraacetic acid (EDTA) in a 0.1 M NaCl solution with different pH values on the corrosion of aluminum. The electrochemical parameters are obtained from the volt-ampere characteristics. As compared with noninhibited solutions, the corrosion of aluminum is accelerated in NaCl solutions with pH 9, 10, and 11 and high concentrations of EDTA. At the same time, for the concentration of EDTA equal to 10(-4) M, the corrosion of aluminum becomes slower.