A Study of Corrosion Combating Efficacy of Leaves and Stem Extract of Naturally Occurring Plants Solanum xanthocarpum and Salvodera persica on Aluminium in 2N HCl Solution

Weight loss and gasometric methods have been used to study the inhibiting effect of extract of leaves and stem of Solanum xanthocarpum and Salvodera persica on the corrosion of aluminium in 2N HCl solution was evaluated. The results indicated that the corrosion inhibition efficiency increased on increasing plant extract concentration. Percentage inhibition efficiencies obtained from weight loss were reasonably in good agreement with those obtained from gasometric method. The analysis of data shows that combating efficacy of Salvodera persica is more than that of solanum xanthocarpum. However leaves extract of Salvodera persica show more combating power than stem extract of salvodera persica.