International Scholarly Research Notices / 2012 / Article / Tab 2 / Research Article
Solanum surrattence as Potential Corrosion InhibitorTable 2 Inhibition efficiency, corrosion rate, and surface coverage for aluminium in 1 N and 2 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 (1 N) (1 N) (1 N) (2 N) (2 N) (2 N) Pet. Ether extract 0.12 29.44 50.47 0.2944 88.61 30.43 0.8861 0.24 44.96 39.37 0.4496 88.77 29.99 0.8877 0.36 46.57 38.21 0.4657 89.74 27.40 0.8974 0.48 55.61 35.33 0.5561 91.68 22.21 0.9168 0.60 54.03 32.88 0.5403 92.66 19.61 0.9266 Acetone extract 0.12 25.81 53.06 0.2581 61.72 102.24 0.6172 0.24 28.63 51.05 0.2863 64.36 95.17 0.6436 0.36 39.11 43.55 0.3911 91.63 22.35 0.9163 0.48 57.86 30.14 0.5786 93.30 17.88 0.9330 0.60 73.39 19.03 0.7339 98.27 4.61 0.9827 Methanol extract 0.12 11.90 63.01 0.1190 49.30 135.40 0.4930 0.24 20.28 57.10 0.2028 54.27 122.14 0.5427 0.36 34.68 46.72 0.3468 58.80 110.02 0.5880 0.48 38.51 50.47 0.3851 62.09 101.23 0.6209 0.60 49.60 36.05 0.4960 67.12 87.82 0.6712