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Solanum Torvum Fruits Extract as an Eco-Friendly Inhibitor on Copper in Acid Medium

Author Affiliations

  • 1Dept. of Chemistry, V V College of Engineering, Arasoor, Tisaiyanvilai-627 657, Tamilnadu, INDIA
  • 2 Postgraduate and Research Department of Chemistry, Sri Paramakalyani College,Alwarkurichi-627 412, Tamil Nadu, INDIA

Res.J.chem.sci., Volume 5, Issue (11), Pages 31-39, November,18 (2015)

Abstract

The inhibition efficacy of Solanum Torvum fruits extract on Copper in 1.0 N HCl has been examined using non-electrochemical methods with various periods of contact as well as temperature. The observed result reveals that the percentage of inhibition efficacy increased with rise of inhibitor concentration, exposure time and temperature. Thermodynamic parameters (viz; Ea, Qads, ΔGa, ΔH and ΔS) suggests that the surface assimilation of inhibitor is endothermic and chemisorption process. It follows both Langmuir and Temkin adsorption isotherm. The dissolution products also proved by Ultra-violet, Fourier transform infrared spectroscopy, Energy dispersion X-ray spectroscopy and Scanning electron microscope.

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