Research Article
Marjoram Extract as Corrosion Inhibitor for Dissolution of Zinc in 1.0 M HCl
Figure 4
Potentiodynamic polarization curves of zinc electrode in 1.0 M HCl solutions containing different concentrations of Marjoram extract at 30°C. 0.00 ppm, 100 ppm, 200 ppm, 300 ppm, 400 ppm, 500 ppm.