scholarly journals Evaluation of Plants and Weeds Extract on the Corrosion Inhibition of Mild Steel in Sulphuric Acid

2011 ◽  
Vol 8 (s1) ◽  
pp. S488-S494 ◽  
Author(s):  
Abida Begum
Keyword(s):  
Free Energy ◽  
Mild Steel ◽  
Sulphuric Acid ◽  
Steel Surface ◽  
Inhibition Efficiency ◽  
Adsorption Process ◽  
First Order ◽  
First Order Kinetics ◽  
Maximum Value ◽  
Kinetic Treatment

Experiments were performed in order to determine the inhibitive effects of extracts of plants and weeds namelyParthenium hysterophorus, Dathura stromonium, Azadirachta indica, Helianthus annuusleaves extract for mild steel in sulphuric acid by using weight loss and thermometric technique. Results demonstrated that, all the experimental inhibitors show an adsorption on steel surface according to Langmuir’s isotherm. The inhibition efficiency increased with increase in the concentration of all tested inhibitors to attain a maximum value at 1.0%. Free energy values for adsorption process show that the process is spontaneous. The kinetic treatment of the results shows first order kinetics.

scholarly journals Influence of Benzotriazole on Corrosion Inhibition of Mild Steel in Citric Acid Medium

2010 ◽  
Vol 7 (3) ◽  
pp. 1090-1094 ◽  
Author(s):  
P. Matheswaran ◽  
A. K. Ramasamy
Keyword(s):  
Citric Acid ◽  
Mild Steel ◽  
Corrosion Inhibition ◽  
Inhibition Efficiency ◽  
First Order ◽  
First Order Kinetics ◽  
Weight Loss Method ◽  
Corrosion Inhibition Efficiency ◽  
Loss Method ◽  
Kinetic Treatment

Benzotriazole an organic compounds has been studied as corrosion inhibition for mild steel in 1 N citric acid by weight loss method. The result showed that the corrosion inhibition efficiency of the compound was found to be varying with the temperature and acid concentration. Also it was found that the corrosion inhibition behaviour of benzotriazole is better when the concentration of inhibitor is increased. The kinetic treatment of the results shows first order kinetics.

scholarly journals Corrosion Inhibition of Mild Steel in Hydrochloric Acid by 2-Benzoylpyridine and Pyridoxolhydrochloride

2009 ◽  
Vol 6 (2) ◽  
pp. 385-394 ◽  
Author(s):  
A. O. James ◽  
N. C. Oforka ◽  
O. K. Abiola ◽  
B. I. Ita
Keyword(s):  
Hydrochloric Acid ◽  
Mild Steel ◽  
Inhibition Efficiency ◽  
Order Type ◽  
Acid Solutions ◽  
First Order ◽  
Hydrochloric Acid Solutions ◽  
Maximum Inhibition ◽  
The Difference ◽  
Kinetic Treatment

The inhibition of corrosion of mild steel in hydrochloric acid solutions by 2-benzoylpyridine (2BP) and pyridoxolhydrochloride (PXO) at 303K, 313K and 323K has been investigated using weight loss and hydrogen evolution techniques. 2BP exhibited higher maximum inhibition efficiency (78.99%) than PXO (71.93%). Generally inhibition was found to increase with increasing inhibitor concentration and decreasing temperature. A first order type of mechanism has been deduced from the kinetic treatment of the results and the process of inhibition was attributed to physisorption. The difference in the inhibition behaviour of the two compounds has been explained on the basis of structure dependent electron donor properties of the inhibitors

scholarly journals Inhibition of Mild Steel Corrosion in Hydrochloric Acid Solution by Ciprofloxacin Drug

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Inemesit A. Akpan ◽  
Nnanake-Abasi O. Offiong
Keyword(s):  
Hydrochloric Acid ◽  
Acid Solution ◽  
Mild Steel ◽  
Hydrochloric Acid Solution ◽  
Room Temperature ◽  
Inhibition Efficiency ◽  
Steel Corrosion ◽  
First Order ◽  
First Order Kinetics ◽  
Mild Steel Corrosion

The inhibition of mild steel corrosion in hydrochloric acid solution by ciprofloxacin drug as an eco-friendly and commercially available inhibitor was studied at room temperature by weight loss technique. It was found that the test drug has a promising inhibitory action against corrosion of mild steel in the medium investigated. The inhibition efficiency was found to increase with a corresponding increase in the concentration of the inhibitor. It was also found that the adsorption as well as the inhibition process followed a first-order kinetics and obeyed Langmuir’s adsorption isotherm.

scholarly journals Influence of Formazan Derivatives on Corrosion Inhibition of Mild Steel in Hydrochloric Acid Medium

2009 ◽  
Vol 6 (s1) ◽  
pp. S438-S444 ◽  
Author(s):  
P. Venkatesan ◽  
B. Anand ◽  
P. Matheswaran
Keyword(s):  
Hydrochloric Acid ◽  
Mild Steel ◽  
Corrosion Inhibition ◽  
Inhibition Efficiency ◽  
First Order Kinetics ◽  
Hydrochloric Acid Medium ◽  
Weight Loss Method ◽  
Corrosion Inhibition Efficiency ◽  
Loss Method ◽  
Kinetic Treatment

Formazan of benzaldehyde (FB) and formazan ofp-dimethyl amino benzaldehyde (FD) were synthesized. These compounds were studied as corrosion inhibitor for mild steel in 1.11 N hydrochloric acid by weight loss method. The result showed that the corrosion inhibition efficiency of these compounds was found to vary with the temperature and acid concentration. Also, it was found that the corrosion inhibition behaviour of FD is greater than that of FB. The kinetic treatment of the results gave first order kinetics. The relative corrosion inhibition efficiency of these compounds has been explained on the basis of structure dependent - electron donor properties of the inhibitors.

Electrochemical behaviour of acetyl G as corrosion inhibitor for mild steel in acid medium

2015 ◽  
Vol 44 (6) ◽  
pp. 371-378 ◽  
Author(s):  
Y. Sangeetha ◽  
S. Meenakshi ◽  
C. Sairam Sundaram
Keyword(s):  
Mild Steel ◽  
Corrosion Inhibitor ◽  
Acid Medium ◽  
Steel Surface ◽  
Inhibition Efficiency ◽  
Electrochemical Impedance ◽  
Electrochemical Behaviour ◽  
Green Inhibitor ◽  
Content Type ◽  
Mild Steel Surface

Purpose – The purpose of this paper is to develop an eco-friendly corrosion inhibitor for mild steel in 1 M HCl. Design/methodology/approach – A pharmaceutical drug acetyl G was investigated for its corrosion inhibition efficiency using weight loss method, potentiodynamic polarisation and electrochemical impedance spectroscopy. Findings – The inhibition efficiency increased with increase in inhibitor concentration. Results from polarisation studies revealed mixed type of inhibition. Impedance studies, scanning electron microscopy and Fourier transform spectroscopy confirm the adsorption of inhibitor on the mild steel surface. Research limitations/implications – The drug acetyl G has sulphur and nitrogen atoms which effectively block the corrosion of mild steel and is non-toxic and has good inhibition efficiency. Practical implications – This method provides an excellent, non-toxic and cost-effective material as a corrosion inhibitor for mild steel in acid medium. Originality/value – Application of this drug as a corrosion inhibitor has not been reported yet in the literature. Replacing the organic inhibitors, this green inhibitor shows excellent inhibition efficiency. This is adsorbed excellently on the mild steel surface due to the presence of long chain and hetero atoms. Thus, the drug retards the corrosion reaction.

scholarly journals A thermometric study on the kinetics of the acid dissolution of aluminium in the presence of Napoleonaea imperialis seeds extract and iodide ions

2018 ◽  
Vol 29 (2) ◽  
pp. 103-109 ◽  
Author(s):  
Habibat Faith Chahul ◽  
Gloria Ihuoma Ndukwe ◽  
David Ogwu Ogwu
Keyword(s):  
Free Energy ◽  
Inhibition Efficiency ◽  
Adsorption Process ◽  
Langmuir Adsorption Isotherm ◽  
Seed Extract ◽  
Considerable Extent ◽  
Acid Dissolution ◽  
Iodide Ions ◽  
Langmuir Adsorption ◽  
Kinetics Of

Abstract The dissolution of aluminum alloy AA 1060 in 0.5 M and 1.0 M HCl was investigated using thermometric measurements. The reaction number of the aluminum coupons varied linearly with the concentration of the acid. Addition of Napoleonaea imperialis seed extract to the dissolving aluminium coupons lowered the reaction number in both concentrations of HCl by inhibiting the dissolution process. The inhibition efficiency of Napoleonaea imperialis seed extract was enhanced to a considerable extent in the presence of iodide ions with the synergistic parameter S > 1. The adsorption of Napoleonaea imperialis extract on the aluminium surface best aligned with the Langmuir adsorption isotherm model. The values of the free energy, ΔGadsfor the adsorption process revealed the process to be spontaneous and physisorptive.

scholarly journals Study of Corrosion Behavior of N’-(2-(2-oxomethylpyrrol-1-yl)ethyl)piperidine for Mild Steel in the Acid Environment

2021 ◽  
Vol 12 (3) ◽  
pp. 3638-3646
Keyword(s):  
Electron Microscopy ◽  
Mild Steel ◽  
Steel Surface ◽  
Inhibition Efficiency ◽  
Protective Layer ◽  
Solution Temperature ◽  
Inhibitor Concentration ◽  
Acid Environment ◽  
Experimental Findings ◽  
Scanning Electron

The corrosion inhibition of mild steel in 1 M hydrochloric acid solution by N'-(2-(2-oxomethylpyrrol-1-yl)ethyl)piperidine (N-OPEP) was studied employing weight loss techniques. The experimental findings revealed that N-OPEP is the most excellent corrosion inhibitor, and the inhibitory performance increases with an increase in the inhibitor concentration. Furthermore, the inhibition efficiency decreases with an increase in the solution Temperature. The adsorption of inhibitor molecules on a mild steel surface followed Langmuir’s isotherm model and was found to be spontaneous. Scanning electron microscopy (SEM) photographs approved the formation of a protective layer of the inhibitor molecules on the surface of mild steel.

scholarly journals Effect of bismuth and bore content in glass system inhibitor on the corrosion behavior of mild steel in 1M hydrochloric acid solution

2019 ◽  
Vol 8 (4) ◽  
pp. 328-337 ◽  
Author(s):  
Azeddine Elbadaoui ◽  
Galai Mouhsine ◽  
Soumya Ferraa ◽  
Hanane Barebita ◽  
Mohammed Cherkaoui Cherkaoui ◽  
...  
Keyword(s):  
Hydrochloric Acid ◽  
Acid Solution ◽  
Mild Steel ◽  
Corrosion Behavior ◽  
Steel Surface ◽  
Inhibition Efficiency ◽  
The Other ◽  
Spectroscopic Methods ◽  
Electrochemical Polarization ◽  
Inhibitor Type

The influence of (0.90-x) Bi2O3-xB2O3-0.10 (Ta2O5-Nb2O5) on the corrosion behavior of mild steel in 1M hydrochloric acid was studied. Electrochemical polarization and impedance spectroscopic methods measurements were used. The inhibition efficiency increases with S1 concentration to reach 79% at 150 ppm. Polarization curves show that our inhibitors. S1 is a cathodic inhibitor type. The increase in temperature leads to a decrease in the inhibition efficiency of the used inhibitor. The thermodynamic study showed that the film was formed at the steel surface by physisorption in the presence of inhibitor. Moreover, in this study, the results showed that the inhibition efficiencies depend on the B2O3 andBi2O3 content in the glass. it is observed that the value at 50% of B2O3 in the glass provided better protection than the other content.

Musa Sapientum (Banana) Peels as Green Corrosion Inhibitor for Mild Steel

2019 ◽  
Vol 797 ◽  
pp. 230-239 ◽  
Author(s):  
Nor Roslina Rosli ◽  
Suriatie Mat Yusuf ◽  
Arina Sauki ◽  
Wan Muhamad Razlan Wan Razali
Keyword(s):  
Weight Loss ◽  
Mild Steel ◽  
Corrosion Inhibition ◽  
Steel Surface ◽  
Inhibition Efficiency ◽  
Steel Corrosion ◽  
Gas Chromatography Mass Spectrometry ◽  
Banana Peel ◽  
Musa Sapientum ◽  
Peel Extract

The inhibition efficiency of Musa sapientum (banana) peel extracts at different concentrations and temperatures on mild steel corrosion in acidic solution of 1 M hydrochloric acid (HCl) were investigated by using weight loss method. The banana peel extract concentrations were tested from 300 to 500 ppm at temperature range between 25°C to 60°C. The performance of banana peel extract as an inhibitor was found compatible in the tested solution. The corrosion rates, which were calculated from the weight loss data, showed that the inhibition efficiency of the extract increased from 86.9% to 89.0% as the concentration of banana peel extract increased from 300 ppm to 500 ppm. It was also observed that the inhibition efficiency decreased as the temperature was increased from 25°C to 60°C. Characterization of the peel extract by using gas chromatography-mass spectrometry (GC-MS) has detected the presence of bioactive compounds which are responsible for the corrosion inhibition and adsorption properties on mild steel surface. Eleven major compounds have been identified as having corrosion inhibition properties. FTIR analysis confirmed the presence of functional groups of alcohols, alkanes, carbonyls, aromatics, ethers, and esters that can prevent corrosion by adsorption on steel surface.

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