Comparative study of mild steel corrosion in 1N Sulphuric acid using Aloe vera and Lawsonia inermis extract

Inhibitive action of the extracts of Aloe vera and Lawsonia inermis on the corrosion of mild steel in 1 N H2SO4 has been studied using conventional weight loss method. The effect of temperature on the corrosion behavior of mild steel was studied in the range of 303 -333 K. It was found that both extracts inhibit remarkably the corrosion of mild steel in acidic solution. The inhibitor efficiency is obtained from weight loss experiments were in good agreement and shows that inhibition efficiency increases with increase in extracts concentration. On comparison of both plants extract finally 5% of Lawsonia inermis extract is found to be good inhibitor in corrosion inhibitor of mild steel in acid medium. Maximum inhibition efficiency obtained is found to be 80 % at 323 K.