Research Article
Some Thiophene Derivatives as Corrosion Inhibitors for Carbon Steel in Hydrochloric Acid
Table 4
Adsorption parameters for inhibitors in 1 M HCl obtained from Langmuir adsorption isotherm at different temperatures.
| | Temperature (°C) | A | B | C | | × 10−3 (M−1) | Slope | | × 10−3 (M−1) | Slope | | × 10−3 (M−1) | Slope | |
| | 25 | 42.82 | 1.24 | 0.988 | 30.01 | 1.24 | 0.988 | 13.37 | 1.00 | 0.943 | | 35 | 36.87 | 1.13 | 0.985 | 43.23 | 1.19 | 0.985 | 14.87 | 1.02 | 0.957 | | 45 | 57.13 | 1.04 | 0.987 | 58.75 | 1.12 | 0.997 | 16.46 | 1.03 | 0.964 | | 55 | 139.41 | 1.05 | 0.999 | 57.13 | 1.00 | 0.999 | 45.99 | 1.08 | 0.995 |
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