Bark Extract of Lantana camara in 1M HCl as Green Corrosion Inhibitor for Mild Steel

Abstract

Lantana camara, an invasive species that adversely affects habitant, bioregions and environment has been studied as corrosion inhibitor. Methanolic extract of barks of Lantana camara in 1 M hydrochloric acid was tested as corrosion inhibitor on mild steel using potentiodynamic polarization technique. The corrosion inhibition efficiency of extract varied with concentration of extract and immersion of time. The inhibition was found to increase with increase in concentration of the extract. The polarization behavior of mild steel revealed that maximum inhibition efficiency is 97.33 % and 89.93 % respectively in the 1000 and 200 ppm concentration of the inhibitor respectively. The results showed that the extract of the barks of Lantana camara served as a mixed type inhibitor.

Electrochemical study on the effect of polar and non-polar extract ofArtemisia vulgarison the corrosion inhibition of mild-steel in an acidic medium

“…There is no dearth of literature dealing with plant extract as a corrosion inhibitor for MS. 1,[3][4][5][10][11][12][13][14][15][16] Nepal is rich in highaltitude endemic plants. Extracts of several high altitude plants of Nepal are found to be effective corrosion inhibitors for MS in acidic media, such as Equisetum hyemale, 9 Berberis aristata, 17 Lanata camara, 18 Euphorbia royleana, 19 Pogostemon benghalensis, 20,21 Jatropha curcas, 22 Eucalyptus globulus. 23 In this study, Artemisia vulgaris (family: Asteraceae), a high-altitude plant, is studied as a green corrosion inhibitor for MS in an acidic medium.…”

Alkaloids extract of Alnus nepalensis bark as a green inhibitor for mild steel corrosion in 1 M H2SO4 solution

“…Mild steel (MS) is a well-known ferrous alloy with 0.15-0.30% C, 0.4% Si, 0.7-0.9% Mn, 0.04% S, 0.04% P and is an excellent material used in structural and construction applications. The affluent use of MS as construction materials is because of its outstanding mechanical properties, ease of fabrication, excellent weldability, and low purchasing cost [1,2]. However, it has low corrosion resistance, especially in acidic environments [3].…”

Adsorption Isotherm and Activation Energy of Inhibition of Alkaloids on Mild Steel Surface in Acidic Medium

“…Mild steel (MS) is a ferrous alloy and the best-preferred construction material due to its availability, excellent mechanical properties, ease of fabrication, and low purchasing cost [1][2][3]. However, corrosion of MS is a serious concern, especially in acidic environments such as petrochemical, chemical plants, gasoline pipelines, and processes such as acid pickling, de-scaling,…”