Research Article
Corrosion Behavior and Adsorption Thermodynamics of Some Schiff Bases on Mild Steel Corrosion in Industrial Water Medium
Table 4
Activation parameters for mild steel in industrial water in the absence and presence of different concentrations of SB1 and SB2.
| Inhibitor | Concentration (M) | K | (kJ mol−1) | (kJ mol−1) | = − RT (kJ mol−1) | (J mol−1 K−1) |
| SB1 | Blank | 2378546 | 35.24 | 32.60 | 32.39 | −131.69 | | 7341105 | 39.39 | 36.75 | 36.53 | −122.32 | | 5797863 | 39.74 | 37.10 | 36.89 | −124.29 | | 7025099 | 40.93 | 38.29 | 38.07 | −122.69 | | 7873395 | 41.87 | 39.23 | 39.02 | −121.73 | | 12522029 | 43.64 | 41.00 | 40.79 | −117.88 | | 8268800 | 43.17 | 40.53 | 40.32 | −121.33 |
| SB2 | Blank | 2378546 | 35.24 | 32.60 | 32.39 | −131.69 | | 37393221 | 43.97 | 41.33 | 41.12 | −108.78 | | 62582735 | 46.01 | 43.37 | 43.16 | −104.50 | | 59352215 | 46.39 | 43.75 | 43.54 | −104.94 | | 91972484 | 47.88 | 45.24 | 45.03 | −101.29 | | 211344487 | 50.47 | 47.83 | 47.61 | −94.38 | | 56288454 | 47.31 | 44.67 | 44.45 | −105.38 |
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