Inhibiting effect of indole and some of its derivatives on corrosion of C-steel in HCl

Abstract

Abstract: The Inhibiting effect of indole (A), indole acetic acid (B), indole buteric acid (C), and 3-acetyl indole (D), on the corrosion of three carbon steels in 10% HCl was investigated by using galvanostatic polarization method and open circuit potential measurements. It was observed that the inhibiting action of inhibitors increased with increasing inhibitor concentration. The best inhibiting effect obtained at the highest concentration (200x10(-6) g/L) of the inhibitors for the three carbon steels. According to polarization and open circuit potential methods the inhibitors have effect on both anodic and cathodic area.

Key words:

A.A.Ismail, S.H.Sanad, A.A.El-Meligi. Inhibiting effect of indole and some of its derivatives on corrosion of C-steel in HCl[J]. J Mater Sci Technol, 2000, 16(04): 397-400.

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Inhibiting effect of indole and some of its derivatives on corrosion of C-steel in HCl

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