International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Since Year 2012 | Open Access | Double Blind Reviewed

ISSN: 2319-7064




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Research Paper | Chemistry | India | Volume 5 Issue 12, December 2016


Lawsonia inermis Leaves Extract to Impede Acid Corrosion of Copper

Monika [81] | Arpita Sharma | Alka Sharma [2]


Abstract: The inhibitive propensity of ethanolic extracts of Lawsonia inermis leaves on corrosion of copper in 0.5M HCl was studied at room temperature using chemical method. Inhibition efficiency was observed to increase with increase in the concentration of Lawsonia inermis extract and was found maximum (90.01%) at its 1.09g/L concentration. Various corrosion, kinetic and thermodynamic parameters were calculated using experimental data. The adsorptive propensity of the inhibitor was endorsed by carrying out Quantum chemical analysis (QCA) and other surface morphological analyses (FT-IR spectroscopy, UV-Vis spectroscopy, SEM etc.). Gibb's free energy for adsorption was also evaluated and it was found that the inhibitor’s active components were spontaneously adsorbed onto the copper surface through a physical adsorption mechanism. The adsorption of inhibitor onto copper surface obeyed Langmuir adsorption isotherm.


Keywords: Copper, acid corrosion, kinetic and adsorptive parameters, SEM


Edition: Volume 5 Issue 12, December 2016,


Pages: 2138 - 2144


How to Cite this Article?

Monika, Arpita Sharma, Alka Sharma, "Lawsonia inermis Leaves Extract to Impede Acid Corrosion of Copper ", International Journal of Science and Research (IJSR), Volume 5 Issue 12, December 2016, pp. 2138-2144, https://www.ijsr.net/get_abstract.php?paper_id=11011702

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