Research Article
A Characteristic Investigation of Aminocyclohexane-N′-methylurea as a Corrosion Inhibitor for Mild Steel in 1 N
Table 1
Inhibition efficiency of ACMU on mild steel corrosion in 1 N H2SO4 at 303 K for various time intervals.
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Concentration of inhibitor (N) | 1 hr | 3 hrs | 5 hrs | Corrosion rate (mmpy) | Surface coverage (θ) | Inhibition efficiency (%) | Corrosion rate (mmpy) | Surface coverage (θ) | Inhibition efficiency (%) | Corrosion rate (mmpy) | Surface coverage (θ) | Inhibition efficiency (%) |
| Blank | 20.061 |
— |
— | 21.770 | — |
— | 22.736 | — | — | 0.001 | 8.470 | 0.5778 | 57.78 | 5.944 | 0.7270 | 72.70 | 4.636 | 0.7961 | 79.61 | 0.005 | 6.687 | 0.6667 | 66.67 | 5.052 | 0.7679 | 76.79 | 3.789 | 0.8333 | 83.33 | 0.010 | 5.795 | 0.7111 | 71.11 | 4.235 | 0.8055 | 80.55 | 3.210 | 0.8588 | 85.88 | 0.015 | 4.235 | 0.7889 | 78.89 | 3.641 | 0.8328 | 83.28 | 2.407 | 0.8941 | 89.41 | 0.020 | 3.121 | 0.8444 | 84.44 | 2.898 | 0.8669 | 86.69 | 1.649 | 0.9275 | 92.75 |
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