Inhibition of Mild Steel Corrosion in 1N HCl Medium by Acid Extract of Ephedra alata

Elyacout Chebouat, Belkhir Dadamoussa, Noureddine Gherraf, Messaoud Gouamid, M. Allaoui, Abdelkrim Cheriti, Abdelkader Khiari

International Journal of Electrochemical Science · 2013 · 13 citations · 9 references

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Abstract

The inhibition action of the acid extract of Ephedra alata leaves against corrosion of mild steel in 1N HCl medium was investigated. Experimental measurements including potentiodynamic polarization and impedance studies were performed. The corrosion rate and the inhibition efficiencies of the extract were calculated. The findings show that the extract could serve as an effective inhibitor for the corrosion of mild steel in HCl media. The results reveal that acid extract of Ephedra alata leaves could serve as a good corrosion inhibitor of a mixed type with cathodic predominance and having efficiency as high as 86.90 % at a concentration of 1.65 % v/v of the inhibitor.

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