الفهرس 
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Abstract
Study of Organic corrosion inhibitors is an attractive field of research due to its in various industries . br Most of the Well-known Acid inhibitors are organic compounds that contain nitrogen ,sulphur,oxygen,and multiple in the molecules through which are adsorbed on the metal surface br Corrosion inhibition of mild steel in acid media by leaf extracts of occimum viridis (OV) was studied at temperature of 30 and 60 C. br The reslts indicate that the extracts inhibit the corrosion process in acid media and inhibition efficiency increased with concentration . br Synergistic effects increased the inhibition efficiency in presence of halide additives namely KCI ,KBr,KI temperature studies revealed adecrease in efficiency with rise in temperature and corrosion activation energies increased in the presence of the extract.