Impedance parameters derived for 0.5 M blank and test solution.
| Conc. of inhibitor (ppm) | R s (Ω) | C dl (μF cm−2) | R ct (Ω cm2) | Inhibition efficiency (%) | Surface coverage (θ) |
|---|---|---|---|---|---|
| Blank | 1.78 | 5.36 | 0.5071 | 00 | 00 |
| 100 | 1.41 | 4.12 | 0.99 | 49 | 0.4877 |
| 200 | 1.57 | 3.47 | 1.21 | 58 | 0.5809 |
| 300 | 1.51 | 3.12 | 2.05 | 75 | 0.7526 |
| 400 | 2.62 | 1.98 | 3.25 | 84 | 0.8439 |
| 500 | 2.41 | 1.87 | 4.95 | 90 | 0.8976 |