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Inhibition of Carbon Steel Corrosion by Iron(III) and Imidazole in Sulfuric Acid

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Figure

Figure 1.  (chemical formula of imidazole)
Figure 2.  Cathodic  and  anodic  polarization  curves of carbon steel in 0.5M H2SO4 solution with  Imidazole: (1) blank, (2) 5.0× 10-4, (3) 1.0 ×10-3, (4) 2.0 ×10-3, (5) 3.0 × 10-3,(6) 5.0 × 10-3M
Fig.(3) represents the effect of addition of increasing concentrations of imidazole on the
Figure 3.  Potentiodynamic anodic   polarization  curves of carbon steel in 0.5M H2SO4 solution with  Imidazole: (1) blank, (2) 5.0× 10-4, (3) 1.0 ×10-3, (4) 2.0 ×10-3, (5) 3.0 × 10-3,(6) 5.0 × 10-3M
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