Department of Studies in Eng. Chemistry, University of Mysore, Manasagangotri, Mysore- 570 006, India
*Corresponding author
1(Badiea Abdullah M.). An Engineer in the general administration for production, fields development, PEPA.
Inhibition efficiencies of ocimum basilicum and cucurbita pepo extracts on low carbon steel corrosion in industrial water have been investigated using mass loss, electrochemical measurements, and SEM. It was found that the plant extracts chosen revealed good performance as green inhibitors for low carbon steel in industrial water and their inhibitive performance was improved with increasing of concentration up to critical values of 2.96 and 5.25 g L−1 for cucurbita and ocimum, respectively. A dsorption of these plant extracts obeyed Flory-Huggins's isotherm. Thermodynamic parameters were evaluated and discussed. SEM was carried out to characterize the film formed on the metal surface.
Low alloy steel, SEM, Polarization, Atmospheric corrosion, Weight loss
