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The use of Pistacia lentiscus L. oil as green inhibitor for corrosion of mild steel in 1M Hydrochloric acid solution: Thermo dynamic and adsorption investigations | Abstract

Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry

ISSN: 0975-413X
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Abstract

The use of Pistacia lentiscus L. oil as green inhibitor for corrosion of mild steel in 1M Hydrochloric acid solution: Thermo dynamic and adsorption investigations

Author(s): Taoufik Haloui 1 , Yassine Kharbach 2 , Zineb Tribak 2 , Mohamed El Azzouzi 3 , Abdelouahad Aouniti 3 , Belkheir Hammouti 3,4 and Aziz B. Alaoui 1

The inhibitory effect of Pistacia lentiscusL. Leave s essential oil was estimated on the corrosion of m ild steel in 1M HCl using weight loss, Electrochemical Impedance Sp ectroscopy (EIS) and Tafel polarization curves. Inh ibition was found to increase with increasing concentration of P. lentiscusessential oilto attain 90.8 % at 2.56 g /L of (PLL) at 303 K. The effect of temperature on the corrosion b ehavior of mild steel in 1M HCl with addition of (P LL) was also studied and the process followed the kinetic/thermo dynamic model of El-Awady et al. in the temperature range from 303 to 333 K. The calculated â?? G ° ads value showed that the corrosion inhibition of the carbon steel in 1 M HCl is mainlycontrolled by a physisorption process. The re sults obtained showed that oil of P. lentiscuscould serve as an effective inhibitor of the corrosion of mild steel in Hydrochloric acid medium.


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