Influence of the alkyl chain length of 2 amino 5 alkyl 1,3,4 thiadiazole compounds on the corrosion inhibition of steel immersed in sulfuric acid solutions

Palomar-Pardavé, M.; Romero-Romo, M.; Herrera-Hernández, H.; Abreu-Quijano, M.; Likhanova, Natalya V.; Uruchurtu, J.; Juárez-García, J. M.

doi:10.1016/j.corsci.2011.09.020

Cited by 150 publications

(55 citation statements)

References 33 publications

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“…This is in agreement with the general observation that inhibition efficiency increases with increase in chain length (i.e., molecular volume). 5 Between benzenesulphonamido and benzamido substituted compounds, latter compounds show higher corrosion inhibition efficiency.…”

Section: Polarization Studiesmentioning

confidence: 99%

“…These include the presence of lone pair of electrons on heterocyclic atoms, chain length (i.e., molecular volume), presence of unsaturated bond, aromatic substituent group, planarity of heterocycles, steric factor, HOMO-LUMO energy gap of the molecules, and other molecular parameters. [1][2][3][4][5][6][7][8][9][10][11][12] Several classes of N-heterocyclic compounds including benzimidazole (BI) and its derivatives have drawn considerable attention as acid corrosion inhibitors, mainly due to their significant corrosion inhibition efficiency, good chelating ability, relatively higher solubility in acid media and also their environment-friendly properties. 13 In the present study, we have used four different benzenesulphonamido and benzamido derivatives of BI (table 1) to investigate their corrosion inhibitory properties for mild steel in 1 M HCl.…”

Section: Introductionmentioning

confidence: 99%

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Effect of optimized structure and electronic properties of some benzimidazole derivatives on corrosion inhibition of mild steel in hydrochloric acid medium: Electrochemical and theoretical studies

et al. 2015

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The corrosion inhibitive action of a few benzimidazole derivatives namely 2-(benzamido) ethylbenzimidazole (BAEBI), 2-(β-benzenesulphonamido) ethylbenzimidazole (BSAEBI), 2-(benzamido) methylbenzimidazole (BAMBI) and 2-(β-benzenesulphonamido) methylbenzimidazole (BSAMBI), towards mild steel in hydrochloric acid has been studied using potentiodynamic polarization and electrochemical impedance spectroscopic (EIS) methods. The results show that these compounds get adsorbed on the mild steel surface following Temkin adsorption isotherm, and act as mixed-type inhibitors. The inhibition efficiencies are found to follow the order, BAEBI > BSAEBI > BAMBI > BSAMBI. This observation is explained in terms of chain length, relative effects of amido and sulphonamido groups, possible structural factors, spatial orientations, energy gap between the frontier molecular orbitals, different intrinsic molecular parameters, like, global hardness and softness, and number of electrons transferred.

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Section: Polarization Studiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of optimized structure and electronic properties of some benzimidazole derivatives on corrosion inhibition of mild steel in hydrochloric acid medium: Electrochemical and theoretical studies

et al. 2015

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“…Singh and Quraishi (2010) studied the effect of cephazolin on the corrosion of mild steel in HCl solution: their results showed that the inhibition efficiency increased with inhibitor concentration. Shukla and Quraishi (2010) also evaluated the cephalexin as mild steel corrosion inhibitor in HCl solution, displaying as well increased inhibition efficiency with increasing inhibitor concentration, up to an optimum at 400 ppm, which on consideration of our group's recent results, is indeed a high concentration (Palomar-Pardave´et al, 2012;EspinozaVa´zquez et al, 2014a,b). The results thus far have indicated that the first generation cephalosporins showed good results for corrosion inhibition of mild steels in chloride media.…”

Section: Introductionmentioning

confidence: 92%

Electrochemical evaluation of cephalothin as corrosion inhibitor for API 5L X52 steel immersed in an acid medium

Aldana-González

Espinoza-Vázquez

Romero-Romo

et al. 2019

Arabian Journal of Chemistry

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The corrosion inhibition efficiency, g, of sodium (6R,7R)-3-[(acetoxy)methyl]-8-oxo-7-[(2-thienylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, cephalothin, was evaluated in the system API 5L X52/1 M HCl, using electrochemical impedance spectroscopy and SEM analysis. The results showed that the inhibition mechanism involves blockage of the steel surface by the inhibitor molecules through a Langmuir-type adsorption process. The studies to determine the durability where the inhibitor remained effective showed that, at stagnant conditions, the g was maintained over 92% for up to 600 immersion hours at 50 ppm, reaching the best corrosion efficiency when temperature was 25°C. Ó 2015 The Authors. Production and hosting by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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“…extensive studies have been performed to look for new environmental friendly organic inhibitors in recent decades, including triazole derivatives [8], thiazolidin [9], oxadiazole derivatives [10], isoxazolidines [11,12], imidazole derivatives [13], etc. The recent work includes synthesis and characterization of some thiadiazole derivatives, and used them as corrosion inhibitors in cooling water system of South Fertilizer Company, Basra, Iraq, using weight loss and galvanostatic polarization techniques.…”

Section: Synthesis and Characterization Of Some Thiadiazole Compoundsmentioning

confidence: 99%

Synthesis and Characterization of Some Thiadiazole Compounds as New Corrosion Inhibitors for Mild Steel in Cooling Water

Jasim¹,

Abduljaleel²,

Fayadh³

2017

Asian J. Chem.

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In present work, five 1,3,4-thiadiazole compounds were synthesized. The prepared compounds were identified by CHNS analysis, FT-IR and 1 H NMR spectroscopy. The corrosion rates in the presence of thiadiazole as a steel corrosion inhibitor in the cooling water system which taken from South Fertilizer Company, Basra, Iraq were measured by the weight loss method and potentiodynamic polarization measurements. The weight loss method was studied in different times (1-5 h) and in 303 to 333 K temperature range. Results obtained revealed that thiadiazole compounds performed as a corrosion inhibitor for mild steel in this medium and its efficiency attains to 86.55 % at 5 × 10 -3 M at 303 K and by potentiodynamic polarization measurements its efficiency attains to 85.35 % in the same conditions. The apparent activation energies, enthalpies and entropies of the dissolution process and the free energies were determined and discussed.

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Influence of the alkyl chain length of 2 amino 5 alkyl 1,3,4 thiadiazole compounds on the corrosion inhibition of steel immersed in sulfuric acid solutions

Cited by 150 publications

References 33 publications

Effect of optimized structure and electronic properties of some benzimidazole derivatives on corrosion inhibition of mild steel in hydrochloric acid medium: Electrochemical and theoretical studies

Effect of optimized structure and electronic properties of some benzimidazole derivatives on corrosion inhibition of mild steel in hydrochloric acid medium: Electrochemical and theoretical studies

Electrochemical evaluation of cephalothin as corrosion inhibitor for API 5L X52 steel immersed in an acid medium

Synthesis and Characterization of Some Thiadiazole Compounds as New Corrosion Inhibitors for Mild Steel in Cooling Water

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