scholarly journals L-Proline as a Green Corrosion Inhibitor in Aqueous Solutions for Carbon Steel

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Nisreen Faraj ◽  
Kareima A. Abdelghani ◽  
A.A. Idress ◽  
Dalal. M. Ibrahim
Keyword(s):  
Weight Loss ◽  
Steel Surface ◽  
Inhibition Efficiency ◽  
Steel Corrosion ◽  
Adsorption Properties ◽  
Green Corrosion Inhibitor ◽  
Chemical Technique ◽  
Weight Loss Method ◽  
Loss Method ◽  
Temkin Adsorption Isotherm

The chemical technique was used to investigate the inhibition and adsorption properties of L-proline for steel corrosion (weight loss method). As the concentration of L-proline increased, the inhibition efficiency increased, but decreased as the temperature increased, according to the findings. The inhibitor’s adsorption to the steel surface has been shown to be random, involving both electrostatic and chemisorptions. The Temkin adsorption isotherm governs the adsorption of L-proline to the steel surface. Thermodynamic parameters have been determined in some cases.

scholarly journals Paraformaldehyde as a corrosion inhibitor for carbon steel in (%15) HCl

2021 ◽  
Vol 11 (2) ◽  
pp. 1-14
Author(s):  
Ghassan Burhan Yaqoob
Keyword(s):  
Weight Loss ◽  
Corrosion Inhibitor ◽  
Steel Surface ◽  
Adsorption Process ◽  
Steel Corrosion ◽  
Inhibitor Concentration ◽  
Langmuir Adsorption ◽  
Mechanism Of Inhibition ◽  
Weight Loss Method ◽  
Loss Method

The effect of paraformaldehyde in the solution of 15% HCL as an inhibitor of C-steel corrosion has been studied using the weight loss method. It was found that the efficiency of inhibitor increased by increasing the inhibitor concentration and decreasing temperatures. Also, the action of paraformaldehyde as a corrosion inhibitor has been attributed to the insoluble complexes was adsorbed on the C-steel surface. The iron complexes were identified by FTIR spectrum and the mechanism of inhibition was explained as Langmuir adsorption. The thermodynamic parameters of the adsorption process were calculated and explained.

scholarly journals Synergistic and Antagonistic Effects of Sodium Molybdate-Zn2+System

2012 ◽  
Vol 9 (4) ◽  
pp. 1746-1752 ◽  
Author(s):  
J. Wilson Sahayaraj ◽  
A. John Amalraj ◽  
Susai Rajendran ◽  
N. Vijaya
Keyword(s):  
Aqueous Solution ◽  
Weight Loss ◽  
Inhibition Efficiency ◽  
Sodium Molybdate ◽  
Antagonistic Effect ◽  
Protective Film ◽  
Antagonistic Effects ◽  
Polarization Study ◽  
Weight Loss Method ◽  
Loss Method

The inhibition efficiency (IE) of sodium molybdate (SM) in controlling corrosion of carbon steel in an aqueous solution containing 120 ppm of Cl-, in the absence and presence of Zn2+has been evaluated by weight-loss method. A synergistic effect exists between SM and Zn2+when the concentration of Zn2+is 25 ppm and above. Inhibition efficiencies obtained are greater than 85%. Antagonistic effect exists between SM and Zn2+when the concentration of Zn2+is 10 ppm and below. The SM-Zn2+system shows excellent IE up to third day. Above third day IE decreases. Acceleration of corrosion takes place. Excellent IE is shown at pH 5,7 and 12. At pH 9, IE decreases since Zn2+is precipitated as Zn(OH)2in the bulk of the solution. Polarization study reveals that SM-Zn2+system functions as a mixed inhibitor. FTIR spectra reveal that the protective film consists of Fe2+-SM complex and Zn(OH)2.

scholarly journals The inhibition of mild steel corrosion in 0.5 M H2SO4 solution by radish leaf extract

RSC Advances ◽  
2019 ◽  
Vol 9 (70) ◽  
pp. 40997-41009 ◽  
Author(s):  
Dongyi Li ◽  
Panpan Zhang ◽  
Xinyu Guo ◽  
Xiaowei Zhao ◽  
Ying Xu
Keyword(s):  
Weight Loss ◽  
Mild Steel ◽  
Electrochemical Method ◽  
Leaf Extract ◽  
Steel Corrosion ◽  
Inhibitory Effect ◽  
H2so4 Solution ◽  
Mild Steel Corrosion ◽  
Weight Loss Method ◽  
Loss Method

The inhibitory effect of radish leaf extract (RLE) on mild steel corrosion in 0.5 M H2SO4 was studied by the weight loss method and the electrochemical method.

scholarly journals Surface Protection of Steel by Adsorption of Milletia Pinnata Extract

2016 ◽  
Vol 13 (2) ◽  
pp. 101-105
Author(s):  
Monikandon Sukumaran ◽  
Kesavan Devarayan
Keyword(s):  
Weight Loss ◽  
Steel Surface ◽  
Inhibition Efficiency ◽  
Physical Adsorption ◽  
Ethanolic Extract ◽  
Steel Corrosion ◽  
Langmuir Adsorption Isotherm ◽  
Surface Protection ◽  
Langmuir Adsorption ◽  
Thermochemical Parameters

Steel corrosion inhibition in acidic and alkaline medium by ethanolic extract of Milletia pinnata is described in this study. The inhibitive behavior of the inhibitor is evaluated by weight loss measurements, adsorption isotherms, and thermochemical parameters. The inhibitor exhibited a maximum of 87% and 90.5% inhibition efficiency against steel corrosion in 0.5 M NaOH and 1.0 M H2SO4, respectively. The weight loss linearly fit to Langmuir adsorption isotherm with correlation coefficient value close to unity. The thermochemical parameters indicated for predominant physical adsorption of the inhibitor molecules on the steel surface.

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.

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. 

Inhibition of Corrosion of Carbon Steel by Resorcinol-Zn2+ System in Well Water

2015 ◽  
Vol 1 (2) ◽  
Author(s):  
Benita Sherine ◽  
A. Jamal Abdul Nasser ◽  
S. Rajendran
Keyword(s):  
Weight Loss ◽  
Carbon Steel ◽  
Inhibition Efficiency ◽  
Well Water ◽  
Protective Film ◽  
Zinc Ions ◽  
Immersion Period ◽  
Afm Analysis ◽  
Weight Loss Method ◽  
Loss Method

The inhibition efficiencies of inhibitor systems constituting various combinations of resorcinol and zinc ions in controlling corrosion of carbon steel immersed in well water have been evaluated by weight loss method. 75 ppm of zinc has 36% inhibition efficiency (Immersion period =7 days). When 100 ppm of resorcinol is added, the IE increases to 96%. The nature of the protective film formed on the metal surface has been analyzed by FTIR spectra, SEM and AFM analysis. The protective film is found to consist of Fe2+ - resorcinol complex and Zn(OH)2.

Study on Corrosion Scale Inhibitor for Blast Furnace Gas TRT System

2013 ◽  
Vol 864-867 ◽  
pp. 1342-1345
Author(s):  
Fu Rong Zhou ◽  
Hu Zhang ◽  
Guang Wu Du ◽  
Wen Hua Wang
Keyword(s):  
Weight Loss ◽  
Blast Furnace ◽  
Corrosion Inhibitor ◽  
Inhibition Efficiency ◽  
Acid Anhydride ◽  
Scale Inhibitor ◽  
Corrosion Scale ◽  
Blast Furnace Gas ◽  
Weight Loss Method ◽  
Loss Method

Cyclohexylamine, morphine, ethanolamine, propiolic alcohol, seventeen alkenyl amide ethyl imidazoline, water depolymerization malaya acid anhydride, etc were chosen as the raw material of corrosion scale inhibitor in view of corrosion scaling reason and characteristic of blast furnace top gas pressure recovery turbine unit. The optimized formula of corrosion inhibitor have been obtained through orthogonal experiment. Corrosion and scale inhibitor performance were evaluated respectively by static weight-loss method, dynamic weight-loss method and calcium carbonate deposition. The results show that when these components are reasonable distributed, the corrosion effect is satisfied. When water depolymerization malaya acid anhydride is combined with the corrosion inhibitor, the corrosion and scale inhibition efficiency of composite inhibitor are more than 90%. Simulation blast furnace gas is adopted in dynamic simulation experiment, the corrosion inhibition efficiency is over 92%.

scholarly journals Application of Organic Inhibitors to the Corrosion of Materials AISI 1070 Steel

2021 ◽  
Vol 2 (1) ◽  
pp. 12-20
Author(s):  
Destri Muliastri ◽  
Devi Eka Septiyani ◽  
Naufal Afif ◽  
Vania Tingting Sirenden ◽  
Januar Nur Rohmah Suprihartini
Keyword(s):  
Weight Loss ◽  
Fourier Transform ◽  
Corrosion Rate ◽  
Leaf Extract ◽  
Inhibition Efficiency ◽  
H2so4 Solution ◽  
Weight Loss Method ◽  
Organic Inhibitors ◽  
Loss Method ◽  
Mango Leaves

AISI 1070 steel is a material that has corrosion when it reacts with the environment. One way to inhibit the corrosion rate is by using organic inhibitors. The organic inhibitors used mango leaves and mango rinds with variations in the concentration of organic inhibitors of 0%, 6%, and 8%, respectively. This study aimed to determine the effectiveness of mango leaf extract and mango rinds as an inhibitor against the corrosion rate of AISI 1070 Steel. The extraction was carried out using the Maceration Method. Fourier Transform Infrared (FTIR), Potenzyodinamic, and Weight Loss tests were carried out in this study.  FTIR results show that both mango rinds and mango leaf have ingredients that were able to inhibit the corrosion rate, such as flavonoid functional groups including C – H, C = O, and C – O. Using the weight-loss method, the best corrosion rate was found in the mango rinds extract with a concentration of 8 mL, which was 31.784 mm/year with an inhibition efficiency of 92%. The highest corrosion rate was in 2M H2SO4 solution using potentiodynamic, without a mixture of inhibitors, that is 0.15589478 mm/year.

scholarly journals Inhibitory Mechanism of Carbon Steel Corrosion in Sea Water by an Aqueous Extract of Henna Leaves

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
V. Johnsirani ◽  
J. Sathiyabama ◽  
Susai Rajendran ◽  
A. Suriya Prabha
Keyword(s):  
Weight Loss ◽  
Carbon Steel ◽  
Metal Surface ◽  
Aqueous Extract ◽  
Inhibition Efficiency ◽  
Sea Water ◽  
Steel Corrosion ◽  
Protective Film ◽  
Weight Loss Method ◽  
Ac Impedance Spectra

The inhibition efficiency (IE) of an aqueous extract of henna leaves in controlling corrosion of carbon steel in seawater has been evaluated by weight-loss method. The weight loss study reveals that the formulation consisting of 8 mL of henna extract (HE) and 25 ppm of Zn2+ has 94% inhibition efficiency in controlling corrosion of carbon steel in sea water. Polarization study reveals that HE and Zn2+ system functions as mixed type inhibitor. AC impedance spectra reveal that protective film is formed on the metal surface. The nature of the metal surface has been analysed by FTIR spectra, SEM, and AFM analysis.

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