Abstract
The alcoholic extracts of stem bark, leaves and fruit from the Prosopis cineraria are tested for their effectiveness to combat corrosion of mild steel in hydrochloric acid, sulphuric acid and in acid mixture (hydrochloric acid z sulphuric acid) by the mass loss method. It was found that the presence of the extracts reduces the corrosion rate of mild steel in acidic solution. The inhibition efficiency increases as the extract concentration is increased. The fruit extract of Prosopis cineraria shows a maximum corrosion inhibition efficiency in the acid mixture solution compared to leaves and stem bark extracts. The Prosopis extract provides a good protection to mild steel against corrosion.
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