Effect of octylphenol polyethylene oxide on the corrosion inhibition of steel in 0.5M H2SO4

Algaber, Amina S.; Elnemma, Eman M.; Saleh, Mahmoud M.

doi:10.1016/j.matchemphys.2004.01.040

Cited by 99 publications

(39 citation statements)

References 22 publications

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“…The experiments were conducted in 1M HCl solution and with different ZASTITA MATERIJALA 58 (2017) broj 1 6 concentration (1x10 -6 , 3 x10 -6 , 6x10 -6 , 9x10 -6 , 15x10 -6 , 18x10 -6 . Stern-Geary method [31] used for the determination of corrosion current is performed by extrapolation of anodic and cathodic Tafel lines to a point which gives log i corr and the corresponding corrosion potential (E corr ) for inhibitor free acid and for each concentration of inhibitor. Then i corr was used for calculation of inhibition efficiency and surface coverage (θ) as below:…”

Section: Methodsmentioning

confidence: 99%

Mitigation of corrosion of carbon steel in acid medium using some antipyrine derivatives

Fouda¹,

El-Maksoud²,

El-Salam³

2017

Zas Mat

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Section: Methodsmentioning

confidence: 99%

Mitigation of corrosion of carbon steel in acid medium using some antipyrine derivatives

Fouda¹,

El-Maksoud²,

El-Salam³

2017

Zas Mat

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“…The enthalpy of adsorption (ΔH 0 ads ) and entropy of adsorption (ΔS 0 ads ) were calculated using the following equation (7) and (8). Anodic and Cathodic polarization curves for mild steel in 1M HCl at 25mM inhibitor concentration of the presence and absence of inhibitors are shown in Figure 8 to 10.…”

Section: Figure 6(a)and6(b): Plot Of θ Versus Log C For Epdbc and Eabc Rementioning

confidence: 99%

“…Compounds including aromatic amine 6 , aliphatic amine 7 , surfactants 8 , hydrazides 9 , organic dyes 10-12 , drugs 13 , poly (4-vinylpyridine) 14 , thiosemi-carbazide 15 and heterocyclic compounds such as triazole 16-17 , bipyrazolic 18 , pierazine 19 , pyrazolones 20 , thiazole 21 and imidazoles 22 were reported as inhibitors. Therefore, The present paper explain a study of corrosion protection action of benzofuran derivatives on mild steel corrosion in 1, 2 and 3M hydrochloric acid solution using weight loss and electrochemical techniques.…”

Section: Introductionmentioning

confidence: 99%

Inhibitory Action of Benzofuran Derivatives on Mild Steel Corrosion in Hydrochloric Acid Solutions

2016

Int. J. Curr. Res. Chem. Pharm. Sci

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Derivatives of benzofuran ((E)-ethyl-5-(2-phenyldiazenyl) benzofuran-2-carboxylate and ethyl 5-aminobenzofuran-2-carboxylate) were used as corrosion inhibitors for mild steel in hydrochloric acid solution. The inhibition efficiency depended on the concentration and type of the benzofurans. The inhibition efficiency ranged between 75 and 85 % at the highest concentration (25 mM), and between 35 and 40 % at the lowest concentration (5 mM) of inhibitor in 1 M HCl solution. Inhibition efficiency decreased with rise in temperature, this corresponded to surface coverage of the metal by the inhibitor. Potentiodynamic polarization measurements have been carried out at room temperature, which clearly reveal the fact that all investigated inhibitors are of mixed type and they inhibit corrosion of mild steel by blocking the active sites of the metal surface. The results also showed that, the inhibitors were adsorbed on the mild steel surface according to Langmuir adsorption isotherm.

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“…Organic compounds have long been known to inhibit the corrosion of mild steel in acidic media. Compounds previously studied as inhibitors include triazole derivatives [2][3][4][5] , bipyrazolic derivatives 6 , surfactants 7,8 , aromatic hydrazides 9 , organic dyes 10,11 , poly (4-vinylpyridine) 12 and thiosemicarbazide-type organic compounds 13,14 . These compounds can adsorb on to the mild steel surface and block active sites, thus decreasing the corrosion rate.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Inhibition of Mild Steel by 4-Allyl-5-pyridin-4-yl-4H-1,2,4-triazole-3-thiol

Orhan¹,

Ercan²,

Koparır³

et al. 2012

Chem Sci Trans

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4-Allyl-5-pyridin-4-yl-4H-1,2,4-triazole-3-thiol has been synthesized and characterized by IR, 1 H NMR, 13 C NMR analysis. The corrosion protection of mild steel in a 0.1 M H 2 SO 4 solution by 4-allyl-5-pyridin-4-yl-4H-1,2,4-triazole-3-thiol was studied by electrochemical impedance spectroscopy (EIS) and scanning electron microscopy (SEM). Results showed that 4-allyl-5-pyridin-4-yl-4H-1,2,4-triazole-3-thiol inhibited mild steel corrosion in a 0.1 M H 2 SO 4 solution and indicated that the inhibition efficiencies increased with the concentration of inhibitor. Changes in impedance parameters suggested the adsorption of 4-allyl-5-pyridin-4-yl-4H-1,2,4-triazole-3-thiol on the mild steel surface, leading to the formation of protective films.

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Effect of octylphenol polyethylene oxide on the corrosion inhibition of steel in 0.5M H2SO4

Cited by 99 publications

References 22 publications

Mitigation of corrosion of carbon steel in acid medium using some antipyrine derivatives

Mitigation of corrosion of carbon steel in acid medium using some antipyrine derivatives

Inhibitory Action of Benzofuran Derivatives on Mild Steel Corrosion in Hydrochloric Acid Solutions

Corrosion Inhibition of Mild Steel by 4-Allyl-5-pyridin-4-yl-4H-1,2,4-triazole-3-thiol

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