Experimental and Theoretical Studies of Mild Steel Corrosion Inhibition in Phosphoric Acid Using Tetrazoles Derivatives

Mahmmod, Adiba A.; Kazarinov, I. A.; Khadom, Anees A.; Mahood, Hameed B.

doi:10.1007/s40735-018-0171-y

Cited by 15 publications

(7 citation statements)

References 31 publications

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“…Presence of Cl − ion on the metallic surface initiates the formation of metal oxides; thereby adversely affect the physiochemical properties of the metals. The use of corrosion inhibitors, mainly heterocyclic compounds have been reported to be one of the most effective methods for against corrosion because they can easily adsorb on metallic surface via their molecular structures P, O, S, N, π-electrons and aromatic rings [ 1 , 2 , 3 , 4 , 5 ]. Many of these heterocyclic compounds are obtained efficiently using easy-access synthesis pathways and are usually used at lower concentrations during the corrosion inhibition process [ 6 , 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Anticorrosive properties of Hexa (3-methoxy propan-1,2-diol) cyclotri-phosphazene compound for carbon steel in 3% NaCl medium: gravimetric, electrochemical, DFT and Monte Carlo simulation studies

Dagdag

Harfi

Gouri

et al. 2019

Heliyon

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The corrosion inhibition performance of Hexa (3-methoxy propan-1,2 diol) cyclotriphosphazene (HMC) on carbon steel in 3% NaCl solution was investigated by weight loss (WL), potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS) measurements, Density functional theory (DFT) and Monte Carlo (MC) simulation. The corrosion inhibition efficiency at optimum concentration (10−3M) is 99% of HMC at 298 K. The corrosion inhibition efficiency at 10−3 M decreases with increase in temperature. The adsorption of HMC on the surface of carbon steel obeyed Langmuir isotherm. Potentiodynamic polarization study confirmed that inhibitor anodic-type. DFT and Monte Carlo (MC) simulations based computational approaches were under taken to support the experimental findings. DFT studies revealed that HMC interact with metallic surface through donor-acceptor interactions in which the anionic parts act as electron donor (HOMO) and cationic parts behaved as electron acceptor (LUMO). The MC simulations study showed that studied HMC adsorb spontaneously on Fe (110) surface.

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Section: Introductionmentioning

confidence: 99%

Anticorrosive properties of Hexa (3-methoxy propan-1,2-diol) cyclotri-phosphazene compound for carbon steel in 3% NaCl medium: gravimetric, electrochemical, DFT and Monte Carlo simulation studies

Dagdag

Harfi

Gouri

et al. 2019

Heliyon

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“…Chaouiki et al [12] studied the synthetic organic compounds, i.e., 4-(isopentylamino)-3-nitrobenzonitrile and 3-amino-4-(isopentylamino)benzonitrile for corrosion inhibition of mild steel in a 1.0 M HCl solution and reported that 4-(isopentylamino)-3-nitrobenzonitrile resulted in improvements to inhibition efficiency. Other synthetic organics, such as 1-hydroxyethyl-3-methylimidazolium hexafluorophosphate and 1-hydroxyethyl-3-methylimidazolium bis-(trifluoromethylsulfonyl)imide [13], clopidogrel [14], p-vinyl benzene sulfonate and vinyl sulfonate-functionalized polyvinyl alcohol [15], 4-mercaptopyridine-modified sodium dodecyl sulfate [16], 1H-perimidine and 1H-perimidin-2-amine [17], tetrazole derivatives [18], 4-((2,3dichlorobenzylidene)amino)-3-methyl-1H-1,2,4-triazole-5(4H)-thione [19], 5-aminopyrazole carbonitriles [20], 2-(1-piperidyl)ethyl 3-methyl-4-oxo-2-phenylchromene-8-carboxylate [21], and 1-(2-ami-noethyl)-1-dodecyl-2-(trifluoromethyl)-4,5-dihydro-1H-imidazol-1-ium chloride [22] have been investigated as corrosion inhibitors for the protection of mild steel in HCl, H 2 SO 4 , and phosphoric acid solution at room temperature. e results confirmed that the compounds reported an inhibition efficiency in the range of 57.1-81.4% [15], 97.0-98.6% [16], 34.6-92.3% [17], 71.1-94.2% [19], 56.8-95.5% [20], 91.2-97.9% [21], and 80.6-99.2% [22].…”

Section: Introductionmentioning

confidence: 99%

Corrosion Inhibition Mechanism of Mild Steel by Amylose-Acetate/Carboxymethyl Chitosan Composites in Acidic Media

Erna

Herdini

Futra

2019

International Journal of Chemical Engineering

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This article details an investigation on the mechanism of corrosion inhibition of mild steel using amylose-acetate-blended carboxymethyl chitosan (AA-CMCh) in acidic media in the context of kinetic and thermodynamic parameters. The surface of mild steel was exposed to test solutions and evaluated using scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). The activation energy (Ea), free energy of adsorption (ΔG), enthalpy of activation (ΔHads), and entropy of activation (ΔSads) were determined in order to elucidate the mechanism of corrosion inhibition. The results confirmed that AA could be improved using CMCh as a corrosion inhibitor. The corrosion rate decreased from 1109.00 to 229.70 mdd (79.29%), while corrosion inhibition increased from 35.13 to 89.72%. Sulfate acid (H2SO4) of 0.25 M also helped in decreasing the corrosion rate from 2664.4 to 1041.67 mdd (60.9%) while also in increasing corrosion inhibition from 56.94 to 68.31%. The calculated values for ΔG, ΔHads, and ΔSads were −33.22 kJ·mol−1, −48.56 kJ·mol−1, and 0.0495 kJ·mol−1·K−1, respectively. The mechanism of corrosion inhibition of mild steel in the acidic condition is dominated and precipitated by the formation of the Fe-chelate compound, which was confirmed by the SEM/EDS spectrum. The reactions were spontaneous, exothermic, and irregular and takes place on the surface of mild steel.

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“…Processes of corrosion are responsible for numerous losses mainly in the industrial field, the best way to fight corrosion growth, among the different methods to shun loss or extirpation of metal exterior, the use of inhibitor is represent one of the best methods known of corrosion protection and one of the most useful on the industrial field. This method is following stand up due to low cost and practice method [1][2][3][4][5][6][7][8][9][10][11]. Metallic copper is a very widely used material due to for excellent electrical and thermal conductivities.…”

Section: Introductionmentioning

confidence: 99%

Corrosion control of Cu–Ni alloy in hydrochloric acid by amines compounds

2019

Int. J. Corros. Scale Inhib.

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Inhibitors of corrosion are chemicals materials that, when added in little amount to an environment impede the development of corrosion reactions. The inhibitors use is represent one of selections of protecting alloys of metals from corrosion, which leads to protect surfaces of metal in corrosive environments. Most organic compounds inhibitors that contain nitrogen, are effective inhibitors in the acidic medium, especially hydrochloric acid. Copper represents noble metal and requiring very strong oxidants for its dissolution or corrosion. The electrolytic plating and chemical dissolution are the main processes used in the electronic devices fabrication. Alloys made of copper are widely used in chemical processes especially when heat and electrical conductivity are important factors in these processes, there is very wide range of copper metal using in commercial applications. The corrosion inhibition or corrosion control of alloy made of copper (Cu)nickel (Ni) in hydrochloric acid (6% HCl) at the range of temperature of (40-60°C) was studied in the absence and presence of the inhibitors used in the experimental work were ethylenediamine (EDA) and tetraethylenepentamine (TEPA) at the range of concentration of (1-10 g/l). The technique of weight loss was used to evaluate the data of corrosion rate. EDA & TEPA were used as organic inhibitors of corrosion. Corrosion rate decreased with increases of inhibitor concentration, while it increased with increases of temperature. The adsorption isotherm of both inhibitors on metal surface used in this research was found to follow Freundlich. The kinetic-thermodynamic data and adsorption isotherms were used to evaluate the values of equilibrium constants (K).

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Experimental and Theoretical Studies of Mild Steel Corrosion Inhibition in Phosphoric Acid Using Tetrazoles Derivatives

Cited by 15 publications

References 31 publications

Anticorrosive properties of Hexa (3-methoxy propan-1,2-diol) cyclotri-phosphazene compound for carbon steel in 3% NaCl medium: gravimetric, electrochemical, DFT and Monte Carlo simulation studies

Anticorrosive properties of Hexa (3-methoxy propan-1,2-diol) cyclotri-phosphazene compound for carbon steel in 3% NaCl medium: gravimetric, electrochemical, DFT and Monte Carlo simulation studies

Corrosion Inhibition Mechanism of Mild Steel by Amylose-Acetate/Carboxymethyl Chitosan Composites in Acidic Media

Corrosion control of Cu–Ni alloy in hydrochloric acid by amines compounds

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