Caulerpin—A bis-Indole Alkaloid As a Green Inhibitor for the Corrosion of Mild Steel in 1 M HCl Solution from the Marine Alga Caulerpa racemosa

2012 ◽  
Vol 51 (31) ◽  
pp. 10399-10407 ◽  
Author(s):  
Chennappan Kamal ◽  
Mathur Gopalakrishnan Sethuraman
Keyword(s):  
Mild Steel ◽  
Marine Alga ◽  
Indole Alkaloid ◽  
Caulerpa Racemosa ◽  
Green Inhibitor ◽  
Hcl Solution

A descriptive study for corrosion control of low-alloy steel by Aloe vera extract in acidic medium

2016 ◽  
Vol 34 (4) ◽  
pp. 241-248 ◽  
Author(s):  
Shefali Dahiya ◽  
Suman Lata ◽  
Parmod Kumar ◽  
Rajeev Kumar
Keyword(s):  
Mild Steel ◽  
Alloy Steel ◽  
Electrochemical Impedance ◽  
Aloe Vera ◽  
Gravimetric Analysis ◽  
Low Alloy Steel ◽  
Green Inhibitor ◽  
Quantum Analysis ◽  
Physical Type ◽  
Hcl Solution

AbstractMethanol extract of Aloe vera leaves (AE) as a green inhibitor for controlling corrosion of low-alloy steel (mild steel) in 0.5 m HCl solution was studied using gravimetric analysis, potentiostatic polarization measurements, electrochemical impedance spectroscopy and quantum analysis. The results obtained revealed that AE has fairly good inhibiting properties against corrosion of mild steel in 0.5 m HCl solution, with efficiency >97%. Also, the inhibition was mixed type that follows the Langmuir adsorption isotherm. The value of ΔG reveals that AE inhibits the corrosion rate via physical type adsorption on the mild steel surface which is further supported by Dubinin-Radushkevich isotherm.

Studying effect of plantain extract behavior as an eco-friendly corrosion inhibitor on the mild steel in 1 M HCl solution

2018 ◽  
Vol 65 (3) ◽  
pp. 310-316 ◽  
Author(s):  
Moosa Es’haghi ◽  
Amirhossein Amjad ◽  
Sorayya Asghari ◽  
Ali Lotfi
Keyword(s):  
Mild Steel ◽  
Electrochemical Impedance ◽  
Physical Adsorption ◽  
Steel Corrosion ◽  
Sample Surface ◽  
Green Inhibitor ◽  
Content Type ◽  
Inhibition Effect ◽  
Mild Steel Corrosion ◽  
Hcl Solution

Purpose Corrosion inhibitors most commonly are used in the acid pickling, cleaning and etching solutions. Plant extracts as rich and cheap resources are among the eco-friendly inhibitors. This study aims to investigate the inhibition effect of plantain extract on mild steel corrosion. Design/methodology/approach The inhibition influence of plantain extract on mild steel corrosion was investigated through Tafel polarization, electrochemical impedance spectroscopy and weight loss techniques in 1 M HCl solution. Furthermore, the sample surface morphology was verified by scanning electron microscopy. Findings The inhibition effect of the plantain extract was increased with the increase in the inhibitor concentration due to its adsorption on the surface of samples. The adsorption mechanism of the plantain extract on mild steel is physical adsorption and follows Langmuir isotherm. Originality/value The results obtained from different methods showed that the plantain extract has good inhibition performance on corrosion mild steel in 1 M HCl solution as a green inhibitor.

Argan hulls extract: green inhibitor of mild steel corrosion in 1 M HCl solution

2012 ◽  
Vol 38 (8) ◽  
pp. 1707-1717 ◽  
Author(s):  
Leila Afia ◽  
Rachid Salghi ◽  
El Houcine Bazzi ◽  
Abdelkader Zarrouk ◽  
Belkheir Hammouti ◽  
...  
Keyword(s):  
Mild Steel ◽  
Steel Corrosion ◽  
Green Inhibitor ◽  
Mild Steel Corrosion ◽  
Hcl Solution
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