Author(s)

Khulood Abid Al-Saadie^1*, Hayfaa Ameer Abas¹, Haider Abdulkareem Yousif Almashhdani²

¹Department of Chemistry, College of Science, Baghdad University, Baghdad, Iraq.
²Department of Dentistry, Al-Rasheed University College, Baghdad, Iraq.

This work describes the inhibition effect of different concentration of an aqueous extracted of Peganum harmala seed on the corrosion of carbon steel in 1 M H₂SO₄ solution using potentiostatic polarization techniques at the temperature range (298 - 328) K. The result showed that the inhibition efficiency increased with increasing of extract inhibitor concentration and temperature. The adsorption of inhibitor on carbon steel surface was fit into Langmuir adsorption isotherm. Kinetic and thermodynamic parameters governing the corrosion and the adsorption process were calculated and discussed.

Corrosion, Carbon Steel, Seed, Peganum harmala , Acidic Solution

Al-Saadie, K. , Abas, H. and Almashhdani, H. (2015) Corrosion Protection of Iron Alloy Using Peganum harmala Extract as Inhibitor in Acidic Solution. Materials Sciences and Applications, 6, 1061-1070. doi: 10.4236/msa.2015.611105.