Research Article
Anticorrosion Activity of 8-Quinoline Sulphonyl Chloride on Mild Steel in 1 M HCl Solution
Table 2
Electrochemical impedance spectroscopy parameters values for mild steel in 1 M HCl solution containing various concentrations of inhibitor.
| Conc. of QSC (ppm) | (cm2) | (cm2) | (μF cm−2) | Surface coverage (θ) | IE (%) η |
| Blank (1 M HCl) | 5.211 | 10.450 | 2924.17 | — | — | 50 | 11.682 | 23.436 | 581.62 | 0.5541 | 55.41 | 100 | 12.517 | 25.207 | 504.68 | 0.5854 | 58.54 | 150 | 15.179 | 30.785 | 340.77 | 0.6605 | 66.05 | 200 | 16.352 | 32.966 | 295.40 | 0.6830 | 68.30 | 250 | 18.678 | 37.669 | 226.32 | 0.7226 | 72.26 | 300 | 20.178 | 40.467 | 195.01 | 0.7418 | 74.18 |
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