scholarly journals Corrosion Inhibition Effect of 1,10-Phenanthroline-5,6-diamine on Mild Steel in Hydrochloric Acid Solution

2018 ◽  
Author(s):  
Ahmed A. Al-Amiery
Keyword(s):  
Weight Loss ◽  
Hydrochloric Acid ◽  
Acid Solution ◽  
Mild Steel ◽  
Inhibition Efficiency ◽  
Inhibition Effect ◽  
Increase With Increase ◽  
Weight Loss Method ◽  
Loss Method ◽  
Hcl Solution

The inhibition impacts of 1,10-Phenanthroline-5,6-diamine (PTDA) on mild steel in 1 M HCl solution were investigated through weight loss method. The inhibition efficiencies of PTDA increase with increase in PTDA concentration at the temperature 303. Weight loss method indicate that PTDA is an excellent inhibitor the inhibition efficiency of 81.5% at the maximum PTDA concentration of 0.5 g/L at the temperature 303K.

scholarly journals Mechanism of Inhibitive Action of Dl-Methionine Towards the Corrosion of Mild Steel in Hydrochloric Acid Solution

2021 ◽  
Vol 9 (10) ◽  
pp. 887-890
Author(s):  
Dr. Abhay Singh
Keyword(s):  
Hydrochloric Acid ◽  
Acid Solution ◽  
Mild Steel ◽  
Hydrochloric Acid Solution ◽  
Inhibition Efficiency ◽  
Sem Analysis ◽  
Weight Loss Method ◽  
Loss Method ◽  
Inhibitive Action ◽  
Scanning Electron

Abstract: DL-methionine has been investigated as inhibitor for the corrosion of mild steel in 1.0M hydrochloric acid solution using weight loss method and Scanning Electron Microscope (SEM) analysis. The investigated results showed that the inhibition efficiency increases with the increase in concentration of the inhibitor and decreases with the increase in temperature. SEM analysis indicated that the metal surface was in a better condition in the presence of inhibitor than the specimen exposed in the absence of the inhibitor. DL-methionine acted as a very good inhibitor and is also environmentally friendly, non -toxic, biodegradable and relatively cheap. Keywords: DL-methionine, mild steel, SEM, Corrosion inhibitor.

STUDIES ON THE INHIBITIVE EFFECT OF 3-HYDROXYFLAVONE ON THE ACID CORROSION OF MILD STEEL

2009 ◽  
Vol 16 (06) ◽  
pp. 845-853 ◽  
Author(s):  
MUTHU NADAR LAVANYA ◽  
DEVARAYAN KESAVAN ◽  
NAGARAJAN PRABHAVATHI ◽  
NAGARAJAN SULOCHANA
Keyword(s):  
Weight Loss ◽  
Hydrochloric Acid ◽  
Mild Steel ◽  
Corrosion Inhibition ◽  
Steel Surface ◽  
Mild Steel Surface ◽  
Inhibition Effect ◽  
Tafel Polarization ◽  
Weight Loss Method ◽  
Loss Method

The corrosion inhibition effect of 3-hydroxyflavone was studied on mild steel in 1 M hydrochloric acid ( HCl ). The anticorrosive effect was evaluated by weight loss and electrochemical methods which include Tafel polarization and AC impedance studies at 300 K. In weight loss method, the inhibition efficiency increased with increase in inhibitor concentration, and decreased with increase in temperature and immersion time, and acid concentration. The inhibitor showed maximum efficiency of 91% at 4 × 10-4 M concentration in 1 M hydrochloric acid. The Tafel polarization study showed that the inhibitor behaves likely as cathodic type. The corrosion inhibition effect measured by weight loss method and electrochemical studies was in good agreement with each other. The surface analysis was done by using scanning electron microscope (SEM). Several adsorption isotherms are assessed to study the adsorption behavior of the inhibitor on the mild steel surface. The negative value of ΔG ads indicates the spontaneous adsorption of the inhibitor on mild steel surface.

scholarly journals Corrosion inhibition potential of the methanolic crude extract of Mimosa pudica leaves for mild steel in 1 M hydrochloric acid solution by weight loss method

2021 ◽  
Vol 15 (1) ◽  
pp. 23
Author(s):  
Eric Bamidele Agbaffa ◽  
Eric Oluwafisayo Akintemi ◽  
Elijah Anamnteowo Uduak ◽  
Oluwatoba Emmanuel Oyeneyin
Keyword(s):  
Weight Loss ◽  
Hydrochloric Acid ◽  
Acid Solution ◽  
Mild Steel ◽  
Corrosion Inhibition ◽  
Hydrochloric Acid Solution ◽  
Crude Extract ◽  
Mimosa Pudica ◽  
Weight Loss Method ◽  
Loss Method

The corrosion inhibitory activity of mild steel in 1M hydrochloric acid solution by Mimosa pudica leaves extract was examined by the weight loss method. The result reveals that the leaves extract performs well as a good eco-inhibitor of the corrosive action of HCl on mild steel. Inhibition efficiency obtained for the extract rises with higher concentration and exposure time but falls with increasing temperature. The mechanism of the adsorption mode of the extract’s molecules fits well with Langmuir adsorption isotherm which suggests that the phytochemical constituents, (tannins, saponins, flavonoids, alkaloids, phenols, and quinones) as qualitatively displayed by the preliminary screening, adsorb onto the metal surface by forming monolayer films. Kinetics study shows that the rate of metal corrosion in the acidic medium is a first-order reaction that is concentration-dependent. Keywords: Mimosa pudica, corrosion inhibition, crude extract, weight loss

Inhibition Effect of N-Octyl-2-Pyrrolidonium Chloride on the Corrosion of Mild Steel in Acidic Medium

2013 ◽  
Vol 634-638 ◽  
pp. 651-654
Author(s):  
Zi Chong Zhuang ◽  
Bao Hua Huang ◽  
Jun Liu ◽  
Yu Jing Lu ◽  
Zhan Chang Pan ◽  
...  
Keyword(s):  
Weight Loss ◽  
Mild Steel ◽  
Acidic Medium ◽  
Mixed Type ◽  
Inhibition Efficiency ◽  
Electrochemical Techniques ◽  
Inhibition Mechanism ◽  
Inhibition Effect ◽  
Hcl Solution ◽  
Mixed Type Inhibitor

A new ionic liquid, N-octyl-2-pyrrolidonium chloride (NOPC), were synthesized and evaluated as inhibitors for mild steel (Q235) corrosion in 1 mol/L HCl. The adsorption behavior and corrosion inhibition mechanism of NOPC for mild steel in HCl solution were investigated by using weight loss measurements, electrochemical techniques, and SEM. The inhibition efficiency increases with the increasing concentration of NOPC in 1 mol/L HCl and decreases as the temperature increases. The results indicate that NOPC is able to function as a mixed type inhibitor.

scholarly journals A Comparative Study on Corrosion Inhibition of Mild Steel UsingPiper NigrumL. in Different Acid Medium

2010 ◽  
Vol 7 (3) ◽  
pp. 942-946 ◽  
Author(s):  
B. Anand ◽  
V. Balasubramanian
Keyword(s):  
Weight Loss ◽  
Hydrochloric Acid ◽  
Mild Steel ◽  
Acid Medium ◽  
Sulphuric Acid ◽  
Corrosion Inhibition ◽  
Piper Nigrum ◽  
Time Interval ◽  
Weight Loss Method ◽  
Loss Method

The inhibition of corrosion of mild steel usingPiper nigrumL in different acid medium by weight loss method was investigated. The corrosion inhibition was studied in hydrochloric acid and sulphuric acid by weight loss method at different time interval at room temperature. The result showed that the corrosion inhibition efficiency of this compound was found to vary with different time interval and different acid concentration. Also, it was found that the corrosion inhibition behavior ofPiper nigrumL is greater in sulphuric acid than hydrochloric acid. So,Piper nigrumL can be used as a good inhibitor for preventing mild steel material.

scholarly journals New Corrosion Inhibitor Derived from Coumarin

2017 ◽  
Author(s):  
Ahmed Al-Amiery
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Weight Loss ◽  
Fourier Transform ◽  
Magnetic Resonance ◽  
Mild Steel ◽  
Corrosion Inhibitor ◽  
Damage Reduction ◽  
Weight Loss Method ◽  
Loss Method ◽  
Hcl Solution

New corrosion inhibitor derived from coumarin-3-amine namely 3-((2-chlorobenzylidene)amino)coumarin was synthesized and characterized by CHN elemental analysis in addition to Fourier transform infrared and nuclear magnetic resonance techniques. The anti-corrosion ability of 3-((2-chlorobenzylidene)amino)coumarin to inhibit the impacts of corrosion has been demonstrated and damage reduction of the mild steel also. 3-((2-chlorobenzylidene)amino)coumarin, has been employed as a good corrosion inhibitor for mild steel in HCL solution. The efficiency of the inhibition was figured according to weight loss method and it was 74.6%.

scholarly journals Corrosion Inhibition of Bark Extract of Euphorbia royleana on Mild Steel in 1M HCl

2019 ◽  
Vol 40 ◽  
pp. 25-29
Author(s):  
Bishal Thapa ◽  
Dipak Kumar Gupta ◽  
Amar Prasad Yadav
Keyword(s):  
Weight Loss ◽  
Mild Steel ◽  
Corrosion Inhibitor ◽  
Inhibition Efficiency ◽  
Bark Extract ◽  
Potential Measurement ◽  
Maximum Inhibition ◽  
Weight Loss Method ◽  
Loss Method ◽  
Loss Experiment

The bark extract of Euphorbia royleana as a green corrosion inhibitor was studied in 1M HCl using weight-loss method and potential measurement. The results show that the bark extract of Euphorbia royleana is an effective anti-corrosion inhibitor of mild steel in acidic media. The corrosion rate decreases with the time of immersion. Weight loss experiment shows that the loss in weight decreases with the time of immersion and inhibition efficiency increases with the concentration of extract. It was observed that maximum inhibition efficiency is 99.60% in 100% concentration of extract. Potential measurement study shows that bark extracts act as a mixed type of inhibitor i.e. inhibits both anodically as well as cathodically. 

Novel Compounds of Imidazole Derivatives as Effective Corrosion Inhibitors for Mild Steel in Hydrochloric Acid Solution

2020 ◽  
pp. 132-155
Author(s):  
Moussa Ouakki ◽  
M. Galai ◽  
Z. Aribou ◽  
M. Rbaa ◽  
B. Lakhrissi ◽  
...  
Keyword(s):  
Weight Loss ◽  
Acid Solution ◽  
Mild Steel ◽  
Steel Surface ◽  
Langmuir Adsorption Isotherm ◽  
Electrochemical Tests ◽  
Imidazole Derivatives ◽  
Weight Loss Method ◽  
Loss Method ◽  
Inhibition Performance

The inhibition performance of two imidazole derivatives, IM-Cl and IM-CH3, on the corrosion behavior of MS in 1M HCl acid solution was studied through weight loss method and electrochemical tests. The results obtained from the electrochemical methods show that inhibition efficiency increases with the increase of inhibitors concentration. The adsorption of inhibitors on the mild steel surface obeys Langmuir adsorption isotherm. The corrosion protection was once also investigated with the aid of UV–Vis spectrophotometry. SEM-EDX was performed and discussed for surface study of uninhibited and inhibited mild steel samples.

scholarly journals Synergistic effect of ZnO nanoparticles with organic compound as corrosion inhibition

2020 ◽  
Author(s):  
Buraq T Sh AL-Mosawi ◽  
Mohammed M Sabri ◽  
Muhanad A Ahmed
Keyword(s):  
Weight Loss ◽  
Mild Steel ◽  
Corrosion Inhibitors ◽  
Inhibition Efficiency ◽  
Corrosion Process ◽  
Zno Nps ◽  
Weight Loss Method ◽  
Steel Surfaces ◽  
Loss Method ◽  
Isatin Derivative

Abstract In chemical manufactures, the corrosion inhibitors were added in order to reduce the corrosion of mild steel. Chemical molecules are often used on mild steel surfaces as portion of the latest finishing steps before painting and/or storage. Here, this work elucidated the utilization of an isatin derivative, namely, 3-((3-acetylphenyl)imino)indolin-2-one synergistic with zinc oxide nanoparticles for improving the impedance of mild steel (MS) against corrosion in 1.0 M hydrochloric acid using the weight loss method and scanning electron microscopy (SEM). Weight loss measurements demonstrated that the best 3-((3-acetylphenyl)imino)indolin-2-one concentration was 0.5 mM and the inhibition efficiency was 83% whereas the inhibition efficiency was 92% with addition of ZnO NPs. 3-((3-Acetylphenyl)imino)indolin-2-one retards the corrosion process at 300 K and demonstrates low inhibition efficiencies at 310, 320 and 330 K.

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.

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