Lepidium Didymium Plant Extract as Eco-Friendly Corrosion Inhibitor for Steel in Acidic Medium

The efficiency of Lepidium didymium’s aerial part for corrosion inhibition, has been explored by applying weight loss analysis, SEM, and spectroscopy technique on mild steel corrosion in 1 M H₂SO₄. These techniques have been used to investigate the corrosion features of the steel in the absence and existence of various quantities of Lepidium didymium’s extract. With the aid of weight-loss statistics, the ability of the plant extract to construct a defensive film on steel surfaces is investigated. The formation of a protective membrane on the steel surface by the extract has also been supported by a surface morphology analysis (SEM). At 2500 mg/L, plant extract has the best inhibitory efficiency for steel in 1 M H₂SO₄ is 91.16%. Lepidium didymium extract is thought to be an effective inhibitor because of the presence of heteroatoms and multiple bonds.