scholarly journals A Potential Corrosion Inhibitor for Acid Corrosion of Mild Steel

2017 ◽  
Vol 08 (06) ◽  
pp. 476-483 ◽  
Author(s):  
Osarolube Eziaku
Keyword(s):  
Mild Steel ◽  
Corrosion Inhibitor ◽  
Acid Corrosion

Inhibition of acid corrosion of mild steel by aqueous nettle extracts

2014 ◽  
Vol 43 (3) ◽  
pp. 127-138 ◽  
Author(s):  
Aida Zaabar ◽  
Razika Aitout ◽  
Laid Makhloufi ◽  
Kamel Belhamel ◽  
Boualem Saidani
Keyword(s):  
Mild Steel ◽  
Corrosion Inhibitor ◽  
Inhibition Efficiency ◽  
Electrochemical Impedance ◽  
Physical Adsorption ◽  
Acid Corrosion ◽  
Critical Concentration ◽  
Healthy Plant ◽  
Content Type ◽  
First Time

Purpose – The aim of this research was to investigate the use of aqueous extracts of nettle plant (NE) as a green corrosion inhibitor of mild steel in hydrochloric acid solution. Design/methodology/approach – The inhibition efficiency was investigated by weight loss measurements, potentiodynamic polarizations, electrochemical impedance spectroscopy, SEM observations and EDX analysis. Findings – The inhibition efficiency increased with an increase in concentration of NE up to a critical concentration of 1.5×10−3 g · cm−3 where the highest inhibition efficiency of 97 percent was obtained. The adsorption of the inhibitor was spontaneous (reflected by the negative value of ΔGads0), supported the mechanism of physical adsorption and obeyed to the Langmuir adsorption isotherm. The inhibition action of the extracts was independent on the storage time; it could be conserved without any specific conditions of time and temperature. Research limitations/implications – The anticorrosion effect can be better understood when the active compound in the extracts is identified and what is the inhibition efficiency of one component in the presence of another in the mixture (synergetic or antagonist effects). Practical implications – Nettle is a healthy plant, without particular toxicity that can find possible applications as environmentally friendly inhibitor of mild steel used as materials in food industry. Originality/value – Aqueous nettle extracts were studied for the first time as corrosion inhibitor and its anticorrosion effect was proven by standard methods.

Protecting Mild Steel from Acid Corrosion Using Extract from Ocimum gratissimum Leaves

2017 ◽  
Vol 73 ◽  
pp. 9-21 ◽  
Author(s):  
Chinonso Blessing Adindu ◽  
Maduabuchi Arinzechukwu Chidiebere ◽  
Francis Chizoruo Ibe ◽  
Cynthia E. Ogukwe ◽  
Emmanuel Emeka Oguzie
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Mild Steel ◽  
Corrosion Inhibitor ◽  
Fourier Transform Infrared Spectroscopy ◽  
Acid Corrosion ◽  
Ethanol Extract ◽  
Fourier Transform Infrared ◽  
Corrosion Monitoring ◽  
Ocimum Gratissimum

The anti-corrosion properties of the ethanol extract of Ocimum gratissimum (OG) leaves on the corrosion of mild steel in both 1 M HCl and 0.5 M H2SO4 was studied using gravimetric, electrochemical, Fourier transform Infrared spectroscopy and scanning electron microscopy methods of corrosion monitoring. The gravimetric results revealed that the inhibitor maintained good inhibition efficiency even at 120 hours of immersion. The electrochemical results showed that OG extract functioned as a mixed type corrosion inhibitor for mild steel in both 1 M HCl and 0.5 M H2SO4, inhibiting both the anodic and cathodic partial reactions via adsorption of the extract constituents on the metal/solution interface. Fourier Transform Infrared Spectroscopy and surface examination results confirmed the adsorption of the extract, organic constituents on the mild steel surface. The results showed that OG ethanol extract functioned as a good corrosion inhibitor for mild steel in both 1 M HCl and 0.5 M H2SO4 solutions.

N-(Piperidinomethyl)-3-[(pyridylidene)amino]isatin: A new and effective acid corrosion inhibitor for mild steel

2008 ◽  
Vol 112 (3) ◽  
pp. 1035-1039 ◽  
Author(s):  
M.A. Quraishi ◽  
Ishtiaque Ahamad ◽  
Ashish Kumar Singh ◽  
Sudhish Kumar Shukla ◽  
B. Lal ◽  
...  
Keyword(s):  
Mild Steel ◽  
Corrosion Inhibitor ◽  
Acid Corrosion ◽  
Acid Corrosion Inhibitor

Bolaamphiphile-class surfactants as corrosion inhibitor model compounds against acid corrosion of mild steel

2020 ◽  
Vol 309 ◽  
pp. 113070 ◽  
Author(s):  
Maryam Chafiq ◽  
Abdelkarim Chaouiki ◽  
Mohamed Damej ◽  
Hassane Lgaz ◽  
Rachid Salghi ◽  
...  
Keyword(s):  
Mild Steel ◽  
Corrosion Inhibitor ◽  
Acid Corrosion ◽  
Model Compounds
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