Corrosion Inhibition of mild steel in acidic medium by ethanol extract of citrullus lanatus plant has been studied using weight loss method. The result of the study revealed that different concentrations of the extract of citrullus lanatus inhibited mild steel corrosion in 0.2M concentration of hydrogen tetraoxosulphate VI solution. The inhibition ability of the rind extract is attributed to the presence of the photochemical in the extracts. Result for weight loss also revealed that inhibition efficiency increased with increasing inhibitor concentration. Adsorption study revealed that adsorption of the extract of citrullus lanatus on mild steel surface occurred according to Langmuir adsorption isotherm.
Keywords: Citrullus Lanatus, Inhibitor Concentration, Mild steel., Weight Loss
