Aqueous Extract of Kalmegh (Andrographis paniculata) Leaves as Green Inhibitor for Mild Steel in Hydrochloric Acid Solution
作者： Ambrish Singh , V. K. Singh , M. A. Quraishi
DOI: 10.1155/2010/275983
关键词:
摘要: The inhibition of the corrosion mild steel in hydrochloric acid solution by extract Kalmegh (Andrographis paniculata) leaves has been studied using weight loss, electrochemical impedance spectroscopy, linear polarization, and potentiodynamic polarization techniques. Inhibition was found to increase with increasing concentration extract. effect temperature, immersion time, on behavior 1 M HCl addition also studied. assumed occur via adsorption inhibitor molecules metal surface. surface obeyed Langmuir isotherm. protective film formed analyzed FTIR spectroscopy. results obtained showed that could serve as an effective media.
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