| Corrosion Inhibitor | Efficiency % | Surface coverage (θ) | Concentration/θ (mg/L) |
| 250 | 80.00 | 0.8000 | 312.50 |
| 750 | 94.28 | 0.9428 | 795.50 |
| 1000 | 92.85 | 0.9285 | 1077.00 |
| 1250 | 97.14 | 0.9714 | 1286.80 |
| 1500 | 95.71 | 0.9571 | 1567.23 |
| 1750 | 97.14 | 0.9714 | 1801.52 |
| 2000 | 95.71 | 0.9571 | 2089.64 |