Table 8: Electrochemical impedance parameters for carbon steel immerged in 1.0 M HCl with and without 10-4 M of ATP at different immersion times.
| Immersion Time (h) |
Rs (Ω cm²) |
Rct (Ω cm²) |
Cdl (µF cm-2) |
nct
|
τdl (ms) |
ηEIS (%) |
| 0.5 |
2.03±0.19 |
642.00±0.28 |
45.04±0.68 |
0.91±0.01 |
28.91±0.001 |
93.79 |
| 2 |
2.18±0.20 |
788.3±0.18 |
44.39±0.68 |
0.92±0.01 |
34.99±0.001 |
94.94 |
| 4 |
2.86±0.19 |
797.3±0.62 |
43.02±0.67 |
0.92±0.01 |
34.30±0.001 |
95.00 |
| 6 |
2.91±0.19 |
542.8±0.37 |
87.00±1.26 |
0.81±0.01 |
47.22±0.001 |
92.65 |
| 12 |
2.01±0.21 |
425.5±0.44 |
88.80±1.93 |
0.78±0.01 |
37.78±0.001 |
90.63 |