International Scholarly Research Notices / 2012 / Article / Tab 1 / Research Article
Solanum surrattence as Potential Corrosion InhibitorTable 1 Inhibition efficiency, corrosion rate, and surface coverage for aluminium in 0.1 N and 0.5 N hydrochloric acid solution with given inhibitor addition for 24 h at 298 ± 1 K.
Conc. Inh. (%) Inhibition efficiency Corrosion rate Surface coverage Inhibition efficiency Corrosion rate Surface coverage (0.1 N) (0.1 N) (0.1 N) (0.5 N) (0.5 N) (0.5 N) Pet. Ether extract 0.12 14.02 13.27 0.1402 24.25 29.27 0.2425 0.24 19.63 12.40 0.1963 27.61 27.97 0.2761 0.36 35.51 9.95 0.3551 35.82 24.80 0.3582 0.48 40.19 9.23 0.4019 42.54 22.21 0.4254 0.60 44.86 8.51 0.4486 48.13 20.04 0.4813 Acetone extract 0.12 12.15 13.55 0.1215 19.03 31.29 0.1903 0.24 22.43 11.97 0.2243 24.63 29.13 0.2463 0.36 41.12 9.08 0.4112 30.60 26.82 0.3060 0.48 45.79 8.36 0.4579 39.18 23.50 0.3918 0.60 51.40 7.50 0.5140 53.73 17.88 0.5373 Methanol extract 0.12 10.28 13.84 0.1028 18.28 31.58 0.1828 0.24 16.82 12.83 0.1682 22.76 29.85 0.2276 0.36 23.36 11.82 0.2336 26.12 28.55 0.2612 0.48 29.91 10.81 0.2991 36.19 24.66 0.3619 0.60 42.06 8.94 0.4206 47.76 20.18 0.4776