Research Article
Evaluation of Corrosion Inhibition Efficiency of Aluminum Alloy 2024 by Diaminostilbene and Azobenzene Schiff Bases in 1 M Hydrochloric Acid
Table 7
Thermodynamic parameters related to SDS and SDA.
| Thermodynamic adsorption parameters |
| Schiff base inhibitor | Concentration (ppm) | Temperature (K) | (103 M-1) | (kJmol-1) | (kJmol-1) | (Jmol-1) | N,N-bis(Salicylidine)-4,4–diaminostilbene (SDS) | 100 | 303 | 15.8 | -34 | | | 313 | 11.2 | -34 | | | 323 | 8.34 | -35 | 29.2 | 203 | 333 | 6.56 | -35 | | | N,N-bis(Salicylidine)-4,4-diamino azobenzene (SDA) | 100 | 303 | 24.7 | -35 | | | 313 | 17.3 | -35 | | | 323 | 11.5 | -36 | 30.6 | 207 | 333 | 9.6 | -36 | | |
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