Research Article
Isomers of Poly Aminophenol: Chemical Synthesis, Characterization, and Its Corrosion Protection Aspect on Mild Steel in 1 M HCl
Table 3
Impedance parameters for mild steel in 1 M HCl in the presence and absence of different concentrations of isomers of aminophenol.
| Inhibitor concentration (mg/L) | (μF/cm2) | (Ω cm2) | IE (%) |
| PoAP | | | | Blank | 6.81 | 20.12 | — | 25 | 5.48 | 64.81 | 69 | 50 | 5.13 | 71.14 | 71.72 | 100 | 4.68 | 108.33 | 81.43 | 250 | 4.31 | 133.49 | 85 | 500 | 4.08 | 208.55 | 90.35 | PmAP | | | | Blank | 6.81 | 20.12 | — | 25 | 6.22 | 25.20 | 20.17 | 50 | 5.22 | 31.43 | 35.98 | 100 | 4.83 | 32.52 | 38.13 | 250 | 4.59 | 45.65 | 55.93 | 500 | 4.38 | 100.29 | 79.94 | PpAP | | | | Blank | 6.81 | 20.12 | — | 25 | 5.57 | 49 | 58.94 | 50 | 5.06 | 65 | 69.05 | 100 | 4.52 | 109.5 | 81.63 | 250 | 4.29 | 138.95 | 85.52 | 500 | 4.41 | 115 | 82.50 |
|
|