Figure 5
From: Biogenic corrosion inhibitor on mild steel protection in concentrated HCl medium
(a) Comparison of corrosion rate and IE of the inhibitor with standard pickling solution for MS immersed in conc. HCl for 25 min [(A) Corrosion rate for blank, (B) Corrosion rate for the inhibitor, (C) Corrosion rate for the standard pickling solution, (D) IE for the inhibitor, (E) IE for the standard pickling solution. (b) Comparison of corrosion rate and IE with and without the inhibitor for MS immersed in conc. HCl for 25 min [(a) Control MS coupons polished surface. (b) MS immersed in conc. HCl medium. (c) MS immersed in conc. HCl with 25 g l−1 of the inhibitor].
