The effects of Aloe vera extract on corrosion and kinetics of corrosion process of zinc in HCl solution

The effects of Aloe vera extract on corrosion and kinetics of corrosion process of zinc in HCl solution

  • a Department of Chemistry, Federal University of Petroleum Resources, Effurun, Nigeria
  • b Department of Pure and Industrial Chemistry, University of Port Harcourt, Port Harcourt, Nigeria

Received 25 July 2009, Accepted 17 October 2009, Available online 23 October 2009

The effect of the extract of Aloe vera leaves on the corrosion of zinc in 2 M HCl solution was studied using weight loss technique. A. vera extract inhibited the corrosion of zinc in 2 M HCl solution and the inhibition efficiency increased with increasing concentration of the extract but decreased with increasing temperature. The adsorption of the inhibitor molecules on zinc surface was in accordance with Langmuir adsorption isotherm. A first-order kinetics relationship with respect to zinc was obtained with and without the extract from the kinetics treatment of the data.

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