Table 1 PDP plots for C-steel in molar HCl solution without and with different concentrations of OSe-based thiourea compounds (DS036 and DS038) at 298 K.
Inhibitor code | Ci (mol L−1) | jcor (µA cm−2) ± SD | Ecor (mV) (SCE) | βa (mV dec−1) | − βc (mV dec−1) | θ | μp% |
|---|---|---|---|---|---|---|---|
Blank | 0.0 | 821.7 ± 31.2 | − 450.5 | 91.75 | 163.92 | – | – |
DS036 | 2.0 × 10–5 | 473.87 ± 24.3 | − 440.6 | 84.13 | 173.66 | 0.4233 | 42.33 |
5.0 × 10–5 | 321.61 ± 19.4 | − 435.4 | 86.01 | 169.69 | 0.6086 | 60.86 | |
1.0 × 10–4 | 178.55 ± 11.5 | − 434.8 | 81.07 | 174.87 | 0.7827 | 78.27 | |
5.0 × 10–4 | 68.28 ± 5.2 | − 429.2 | 78.68 | 172.16 | 0.9169 | 91.69 | |
1.0 × 10–3 | 27.52 ± 2.1 | − 442.8 | 85.93 | 175.71 | 0.9665 | 96.65 | |
DS038 | 2.0 × 10–5 | 431.14 ± 22.6 | − 438.4 | 82.27 | 176.87 | 0.4753 | 47.53 |
5.0 × 10–5 | 297.04 ± 17.7 | − 433.5 | 85.85 | 179.94 | 0.6385 | 63.85 | |
1.0 × 10–4 | 146.34 ± 9.8 | − 437.6 | 90.01 | 180.62 | 0.8219 | 82.19 | |
5.0 × 10–4 | 41.33 ± 3.1 | − 452.8 | 88.96 | 178.28 | 0.9497 | 94.97 | |
1.0 × 10–3 | 11.99 ± 1.5 | − 439.4 | 88.48 | 176.18 | 0.9854 | 98.54 |
