Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Inhibitions of Corrosion of Nickel in Perchloric Acid by mono-substituted Phenyl N-phenylcarbamates

  • A. K. Mohamed (Chemistry Deprtment, Faculty of Science, Qatar University) ;
  • S.S. El (Chemistry Deprtment, Faculty of Science, Qatar University) ;
  • A.S. Fouda (Chemistry Deprtment, Faculty of Science, Qatar University)
  • Published : 1989.12.20
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Abstract

The use of some mono-substituted phenyl N-phenylcarbamates derivatives as corrosion inhibitors for nickel in 1M perchloric acid was studied by galvanostatic polarization. The inhibition appears to function through general adsorption isotherm. However, galvanostatic polarization data suggest that in the case of all seven inhibitors both anode are polarized under the influence of an external current. Electrocapillary measurements have also revealed that the tendency of the inhibitors tested to adsorb on metallic surface follows the same order of efficiency.

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