Inhibition of mild steel corrosion using Jatropha Curcas leaf extract

Abstract

Jatropha Curcas leaf was investigated as a green inhibitor on the degradation of mild steel in

Study of Jatropha Curcas Extract as a Corrosion Inhibitor in Acidic Medium on Mild Steel by Weight Loss and Potentiodynamic Methods

“…Figure 3 shows that the inhibition efficiency increases with an increase in the concentration of the JC extracts. Similar observations have been reported for JC leaf extract when the gravimetric method was used [22,25]. The results suggest that an increase in extract concentration increases the number of inhibitor molecules available for the adsorption onto the MS surface.…”

“…Lantana camara [17], Euphorbia royleana [18], Artemesia vulgaris [19], Pogostemon benghalensis [20], Calotropis gigantean [21] have been studied as a green corrosion inhibitor, and they have shown inhibition efficiency above 90%. The leaves, stem, and oil of Jatropha curcas have shown productive corrosion inhibition efficiency against mild steel (MS) in the acidic medium [22][23][24].…”

The Corrosion Inhibition of Mild Steel in Sulphuric Acid Solution by Adsorption of African Perquetina Leaves Extract

“…Hydrogen evolution measurement Hydrogen evolution measurement was carried out using gasometric assembly similar to the gasometric steup described by [15]. The assembly was setup to measure the volume of hydrogen gas evolved from mild steel corrosion in test solution.…”

“…The temperature probe was inserted in to test tube as described by [15] and shown in Figure 1. The flask was filled with 2 M H 2 SO 4 solution and mild steel coupons were carefully dropped into the test solution and quickly closed while the thermometer probe was pierced through the cock that cover the test tube.…”

“…The experiment was repeated in the absence and presence of different concentrations of studied inhibitors. Computation reaction number was calculated as obtained in the past literature ( [15][16]. As below:…”