scholarly journals 1-Butyl-3-Methylimidazolium Chloride Ionic Liquid as Inhibitor for Corrosion Protection of Mild Steel in Acidic Media

2019 ◽  
Vol 7 (4.14) ◽  
pp. 146
Author(s):  
A A. Ahmad Tarmizi ◽  
L Peter ◽  
D Ahtoi ◽  
R Yusof ◽  
S N.A. Syed Ismail ◽  
...  
Keyword(s):  
Weight Loss ◽  
Ionic Liquid ◽  
Mild Steel ◽  
Sulphuric Acid ◽  
Corrosion Protection ◽  
Corrosion Performance ◽  
Weight Loss Measurement ◽  
Scanning Electronic Microscopy ◽  
Acidic Media ◽  
Loss Measurement

Corrosion inhibitor is a substance added to the corrosive environment in small quantities to reduce the corrosion a metal. The addition of inhibitors will reduce the corrosion rate of the metal by retarding the corrosion process on the metal surface. Thus, this study focused on the study of the effectiveness of 1- butyl-3-methylimidazolium chloride ([EMIM]Cl) ionic liquid as an inhibitor for corrosion protection of mild steel. Two different concentrations of [EMIM]Cl (0.05 M and 0.5 M) were tested into different concentrations of sulphuric acid (0.05M, 0.10 M, 0.15 M, 0.20 M and 0.25 M). Weight loss measurement was used to determine the effectiveness of the [EMIM]Cl as inhibitor for corrosion protection. Results showed that acid concentrations play an important role for the corrosion protection process in the presence of the inhibitor. The weight loss increases as the concentration of the acid increased. The study also revealed that the concentrations of [EMIM]Cl ionic liquid effect the performance of the inhibitor. From this study, 0.5 M of [EMIM]Cl ionic liquid shows better corrosion performance compared to 0.05 M of [EMIM]Cl. At 0.25 M of sulphuric acid, the weight loss of untreated metal increased drastically from 0.0075 g at 0.5 hour to 0.0974 g at 24 hours. After treated with 0.5 M of [EMIM]Cl, the weight loss measurement slightly increased from 0.0027 g at 0.5 hour to 0.0179 g at 24 hours. This weight loss value is lower compared to mild steel treated with 0.05 M [EMIM]Cl which is 0.0469 g at 24 hours. The performance of the inhibitor in two different type of acid was also investigated. The morphology of the untreated mild steel and mild steel treated with [EMIM]Cl was investigated by scanning electronic microscopy (SEM)  

scholarly journals Corrosion Inhibitive Properties of 5-(4-Aminophenyl)-1,3,4-oxadiazole-2-thiol and 5-(4-Methylphenyl)-1,3,4-oxadiazole-2-thiol on Mild Steel in 1.0 M HCl Solution

2021 ◽  
Vol 33 (12) ◽  
pp. 2953-2964
Author(s):  
Vikas Kalia ◽  
Pradeep Kumar ◽  
Suresh Kumar ◽  
Hariom Dahiya
Keyword(s):  
Weight Loss ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Mild Steel ◽  
Electrochemical Impedance ◽  
Charge Transfer Resistance ◽  
Polarization Measurement ◽  
Weight Loss Measurement ◽  
Transfer Resistance ◽  
Loss Measurement

The corrosion inhibition consequence of 5-(4-aminophenyl)-1,3,4-oxadiazole-2-thiol (APOT) and 5-(4-methylphenyl)-1,3,4-oxadiazole-2-thiol (MPOT) were accomplished by employing weight loss measurement, electrochemical impedance spectroscopy (EIS), potentiodynamic polarization measurement and scanning electron microscope (SEM). An impact of immersion time 12.0 h and different temperatures (298, 308 and 318 K) with solution of 1.0 M HCl, which include various concentration of inhibitor at the corrosion of mild steel were designed. Weight loss measurement showed that with enhancing the concentration of these studied inhibitors the percentage inhibition efficiency (IE%) enhances, but corrosion rate (CR) diminishes while reverse condition in case of temperatures change. The electrochemical impedance spectroscopy examine pointed out that the charge transfer resistance (Rct) values enhances and consequently the double layer capacitance (Cdl) values diminishes with rising each inhibitor concentration in 1.0 M HCl and also there is a formation of adsorption coating at the metal surface. Polarization measurement showed that both APOT and MPOT perform as mixed type corrosion inhibitors. Furthermore, the adsorption behaviour on surface of mild steel for each studied inhibitor results the Langmuir adsorption isotherm. Surface conduct of mild steel also designed through the SEM and energy dispersive X-ray (EDX) analysis and concludes that there is evolution of inhibitive film of APOT and MPOT on the surface of mild steel.

Room temperature electrosynthesis of TinO2n-1 film and its bilayer with PNMPy on mild steel for corrosion protection in sulphuric acid

2021 ◽  
pp. 137996
Author(s):  
Nuran Özçiçek Pekmez ◽  
Merve Uğur ◽  
Erhan Karaca ◽  
Zeliha Ertekin ◽  
Kadir Pekmez
Keyword(s):  
Mild Steel ◽  
Sulphuric Acid ◽  
Corrosion Protection ◽  
Room Temperature

scholarly journals Corrosion and Kinetic Study of Eucalyptus camaldulensis Seeds Extract Percolated with Methanol on Aluminium Coupons in HCl

2020 ◽  
pp. 61-76
Author(s):  
Ishaq Yahaya Lawan ◽  
Fatima Khalil Abdullah ◽  
Sani Idris ◽  
Shinggu D. Yamta ◽  
Abdurrahman Hudu
Keyword(s):  
Weight Loss ◽  
Kinetic Study ◽  
Adsorption Mechanism ◽  
Eucalyptus Camaldulensis ◽  
Aluminum Surface ◽  
Chemical Adsorption ◽  
Weight Loss Measurement ◽  
Thermodynamic Consideration ◽  
Loss Measurement ◽  
Inhibitor Efficiency

This research discusses a detail optimization of Eucalyptus camaldulensis seeds extract as corrosion inhibitor for aluminum coupons in HCl using weight loss measurement and kinetic study. The result shows that the maximum inhibitor efficiency was obtained at a concentration of 2.0 (%W/V). However the highest inhibitor efficiency of 85% was obtained at 50ºC and the least inhibitor efficiency of 29% was obtained at 30ºC. Thermodynamic consideration revealed that adsorption of inhibitor of aluminum surface was exothermic and consistent with chemical adsorption mechanism.

Adsorption behavior of tautomeric forms of 2-aminino-5-mercato-1,3,4 – thiadizole as corrosion inhibitor on copper surface

2016 ◽  
Vol 63 (6) ◽  
pp. 452-460 ◽  
Author(s):  
Sang Xiong ◽  
Jianlin Sun ◽  
Yang Xu ◽  
Xundong Yan
Keyword(s):  
Weight Loss ◽  
Corrosion Inhibitor ◽  
Adsorption Energy ◽  
Copper Surface ◽  
Adsorption Behavior ◽  
Weight Loss Measurement ◽  
Content Type ◽  
Loss Measurement ◽  
Polar Groups ◽  
Tautomeric Forms

Purpose The purpose of this study is to evaluate the effect of the four tautomeric forms of 2-amino-5-mercatpo-1,3,4-thiadizole (AMT) absorbed on copper surface by the polar or non-polar groups. Polar group of AMT is mostly electronegative with larger N and S atoms as central atoms. 5-amino-1,3,4-thiadiazole-2(3H)-thion (AMT-c) has the highest adsorption energy and is easy to react with copper. The interaction between AMT-c and copper conforms to chemisorption, which is to be further verified by the experiment on the weight loss measurement. Design/methodology/approach Adsorption behavior of AMT as corrosion inhibitor on copper surface in oil field was studied by weight loss measurement, and the corrosion inhibition mechanism was analyzed. Reactive sites and distributions of tautomeric forms of AMT as inhibitor on Cu(100) crystal plane were calculated by density functional theory. Findings All atoms of AMT are in the same plane, and AMT is an aromatic ring structure by large p-chain adsorbed on the metal surface by a plane configuration. AMT-c has the highest adsorption energy and also the most stable isomerized product. The determinate locations of AMT on the Cu(100) surface are the bridge and the hollow sites using molecular dynamics. Corrosion of copper can be effectively inhibited by AMT, which is a kind of excellent corrosion inhibitor, and this property is attributed to the polar groups and non-polar groups of AMT that play a role as absorption and shielding on copper surface, respectively. Inhibition efficiency is increased with the increase in the concentration of the inhibitor. The maximum efficiency of 92 per cent is obtained for 50 ppm AMT concentration at 373 K, which is attributed to the presence of extensively delocalized electrons of the phenyl rings, planarity and the presence of lone pair of electrons on N and S atoms, which favored a greater adsorption of inhibitors on copper surface. Originality/value Corrosion of copper can be effectively inhibited by AMT, which is a kind of excellent corrosion inhibitor, and this property is attributed to the polar groups and non-polar groups of AMT that play a role as absorption and shielding on copper surface, respectively. Adsorption of AMT as corrosion inhibitor on copper surface obeys Langmuir isotherm. The interaction between AMT and copper conforms to chemisorption, which is to be further verified by the experiment on the weight loss measurement.

Adsorption Behavior and Inhibition of N,N-Diethylammonium O,O'-Dicyclohexydithiophosphate for Carbon Steel in Acid Medium

2011 ◽  
Vol 239-242 ◽  
pp. 347-351 ◽  
Author(s):  
Bin Xie ◽  
Chuan Lai ◽  
Li Ke Zou ◽  
Xiang Mei Zeng ◽  
Chun Huang ◽  
...  
Keyword(s):  
Weight Loss ◽  
Carbon Steel ◽  
Standard Free Energy ◽  
Weight Loss Measurement ◽  
Free Energy Of Adsorption ◽  
Loss Measurement ◽  
Force Microscopy ◽  
Carbon Steel Surface ◽  
Microscopy Techniques ◽  
Hcl Solution

The inhibition effect of N,N-diethylammonium O,O'-dicyclohexyldithiophosphate(NOCP) against the corrosion of carbon steel in HCl solution was studied by weight loss measurement, potentiodynamic polarization and atomic force microscopy techniques. The studies of weight loss measurement show that the inhibition efficiency was up to 99.54 % at the inhibitor concentration of 2.717×10-4 M in 1.0 M HCl solution at 25°C. The adsorption of NOCP on carbon steel surface obeys the Langmuir isotherm. Polarization curves indicate NOCP is a mixed-type inhibitor, and the obtained standard free energy of adsorption suggests that the chemisorption takes place spontaneously. The effects of temperature, acid concentration and immersion time were also studied.

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.

Study of hot corrosion of alloy 800 using linear polarisation resistance and weight loss measurement

2001 ◽  
Vol 17 (7) ◽  
pp. 880-885 ◽  
Author(s):  
C. Cuevas-Arteaga ◽  
J. Porcayo-Calderon ◽  
G. Izquierdo ◽  
A. Martinez-Villafane ◽  
J.G. Gonzalez-Rodriguez
Keyword(s):  
Weight Loss ◽  
Hot Corrosion ◽  
Weight Loss Measurement ◽  
Loss Measurement ◽  
Polarisation Resistance ◽  
Alloy 800 ◽  
Linear Polarisation

Synthesis and Inhibition Performance of Two Imidazoline Corrosion Inhibitors with Different Hydrophilic Groups

2012 ◽  
Vol 468-471 ◽  
pp. 2478-2482 ◽  
Author(s):  
Guo Dong Fan ◽  
Meng Ya Cui
Keyword(s):  
Weight Loss ◽  
Hydrochloric Acid ◽  
Ir Spectrum ◽  
Quaternary Ammonium ◽  
Benzyl Chloride ◽  
Corrosion Inhibitors ◽  
Weight Loss Measurement ◽  
Loss Measurement ◽  
Inhibition Performance ◽  
Maize Oil

Imidazoline quaternary ammonium salt (IM) was synthesized in this paper by maize oil, 2-(aminoethylamino) ethanol and benzyl chloride. Then it was modified by urea and thiourea to obtain IM-O and IM-S respectively. The products were analyzed with IR spectrum and 1HNMR spectrum. The corrosion inhibition performance of IM-O and IM-S was evaluated by weight-loss measurement of A3 steel in hydrochloric acid. The compare research in the concentrations of the corrosion inhibitor, the concentrations of hydrochloric acid, the temperature of pickling, the time of pickling and the concentrations of Fe3+ were done. The results show that the two compounds are good inhibitors for A3 steel and the IM-O has stronger corrosion inhibiting ability than IM-S.

scholarly journals Different Setup of Capacitive Coupling Protection System on Mild Steel

2021 ◽  
Vol 2080 (1) ◽  
pp. 012024
Author(s):  
Wan Mohd Haqqi Wan Ahmad ◽  
Siti Hawa Mohamed Salleh ◽  
Shaiful Rizam Shamsudin ◽  
Rajaselan wardan ◽  
Mohd Subhi Din Yati ◽  
...  
Keyword(s):  
Weight Loss ◽  
Surface Morphology ◽  
Mild Steel ◽  
Corrosion Protection ◽  
Steel Surface ◽  
Electrical Current ◽  
Capacitive Coupling ◽  
Current Consumption ◽  
Current Voltage ◽  
Experimental Surface

Abstract A Capacitive Coupling Corrosion Protection (CCCP) technology based on coupler pads was investigated. The layout of the coupler pads on the mild steel surface was studied to get the best outdoor corrosion protection. A square wave of current/voltage is supplied to the steel surface for 72 hours via a copper coupler pad in three arrangements, i.e., single, double-sided, and opposite configurations. The efficiency of the CCCP configuration was assessed by measuring electrical current consumption, weight loss, and post-experimental surface morphology observations. It is found that the current consumption of 600 μA/cm2 in the double-sided configuration is practically stable. The lowest weight loss and clean surface morphology also prove that the double-sided configuration can improve the corrosion protection of mild steel. It was discovered that by employing more coupling pads on both sides of the metal sheet, the excessive positive charge capable of producing oxidation of mild steel could be easily discharged.

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