Research Article
Anticorrosion Activity of 8-Quinoline Sulphonyl Chloride on Mild Steel in 1 M HCl Solution
Table 3
Potentiodynamic polarization parameters values for mild steel in 1 M HCl solution containing various concentrations of inhibitor.
| Conc. of QSC (ppm) | (V/dec) | (V/dec) | (mV/SCE) | (mA/cm2) | Surface coverage (θ) | IE (%) η |
| Blank (1 M HCl) | 6.907 | 6.374 | −263 | 1.894 | — | — | 50 | 7.235 | 6.933 | −334 | 0.8914 | 0.5294 | 52.94 | 100 | 6.963 | 7.575 | −339 | 0.7266 | 0.6164 | 61.64 | 150 | 6.620 | 7.664 | −347 | 0.6788 | 0.6416 | 64.16 | 200 | 7.300 | 7.038 | −355 | 0.5813 | 0.6931 | 69.31 | 250 | 6.702 | 6.992 | −359 | 0.4474 | 0.7638 | 76.38 | 300 | 7.119 | 7.355 | −362 | 0.3850 | 0.7967 | 79.67 |
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