Table 7 Inhibition efficiency of soxhlet MeOH extract of T. ornata calculated from electrochemical impedance spectroscopy (EIS) results with various concentrations.
From: Biogenic corrosion inhibitor on mild steel protection in concentrated HCl medium
S. No | Inhibitor concentration | Rp (Ω cm2) | Rs (Ω cm2) | Rt (Ω cm2) | Inhibition efficiency (%) |
|---|---|---|---|---|---|
1 | 0 g l−1 | 4.7866 | 0.0942 | 4.6992 | — |
2 | 5 g l−1 | 17.4415 | −22.971 | 29.35 | 60.3 |
3 | 10 g l−1 | 21.672 | −26.142 | 42.106 | 72.2 |
4 | 15 g l−1 | 29.1042 | −32.4045 | 71.424 | 89.09 |
5 | 20 g l−1 | 36.1097 | −50.44 | 73.1091 | 89.24 |
6 | 25 g l−1 | 45.7801 | −34.15 | 76.66 | 94.5 |
