Research Article
Effect of Pharmaceutically Active Compound Nitroxoline on the Corrosion of Mild Steel in an Acidic Environment
Table 5
Potentiodynamic polarization parameters for mild steel corrosion in 1 M sulphuric acid solution at various concentrations of the inhibitor.
| Nitroxoline conc. (ppm) | (V/dec) | (V/dec) | (mV/SCE) | (mA/cm2) | (ohm) | IE (%) η |
| H2SO4 (blank) | 6.875 | 6.417 | | 2.277 | 14 | — | 50 | 6.453 | 6.569 | | 0.9727 | 34 | 57.28 | 100 | 7.347 | 7.063 | | 0.7085 | 43 | 68.88 | 150 | 6.156 | 7.164 | | 0.6299 | 52 | 72.34 | 200 | 6.871 | 7.298 | | 0.4693 | 65 | 79.39 | 250 | 7.472 | 7.261 | | 0.4155 | 71 | 81.75 | 300 | 9.096 | 8.378 | | 0.2599 | 96 | 88.59 |
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