Quaternary Pyridinium Salts as Inhibitors of Mild Steel Biocorrosion

Kurmakova, I. N.; Bondar, Olena; Polevichenko, Sergey; Демченко, Н. Р.

doi:10.23939/chcht11.03.314

Cited by 10 publications

(4 citation statements)

References 4 publications

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“…According to the data from our research and other sources [8,[10][11][12][13], the most promising and effective inhibitors-biocides of microbial corrosion of steel, induced by sulfate-reducing bacteria, are heterocyclic compounds, containing nitrogen.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Antibacterial and Anti-Corrosive Activity of 2,3-Dihydroimidazo[1,2-a]Pyridinium Bromides

Demchenko¹,

Tkachenko²,

Demchenko³

2020

ChChT

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The paper describes the synthesis of a set of new 2,3-dihydroimidazo[1,2-a]pyridinium bromides which demonstrate antibacterial properties against sulfatereducing bacteria of Desulfomicrobium and Desulfovibrio strains and inhibit their functioning in the binary culture under the steel microbial corrosion. The compounds demonstrate antibiofilm and anticorrosive properties in the medium with sulfate-reducing bacteria, steel anticorrosion rate is up to 70.6 %.

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Section: Introductionmentioning

confidence: 99%

Synthesis, Antibacterial and Anti-Corrosive Activity of 2,3-Dihydroimidazo[1,2-a]Pyridinium Bromides

Demchenko¹,

Tkachenko²,

Demchenko³

2020

ChChT

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“…Considerable loss of metal fund to microbial corrosion and man-caused risks demand the search of effective inhibitors with biocidal activity and the establishment of their action mechanism. Most of the researches are aimed at studying steel biocorrosion under the influence of sulfate-reducing bacteria (SRB) and its inhibition [1][2][3][4]. Under anaerobic conditions that facilitate the growth of SRB, technological copper equipment is also subject to microbial corrosion [5].…”

Section: Introductionmentioning

confidence: 99%

The effect of triazoloazepine bromide with biocidal activity on microbial copper corrosion

2018

Int. J. Corros. Scale Inhib.

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The study deals with the effect of triazoloazepine bromide with biocidal activity against sulfate-reducing bacteria on microbial copper corrosion in neutral water-salt Postgate "B" medium with the enrichment culture of bacteria, isolated from the biofilm, formed on the metal surfaces of sewage treatment facilities. It has been established that the studied substance also inhibits the growth of iron-reducing bacteria, denitrifying bacteria and ammonifying bacteria, which ensure the stable growth of the most numerous and aggressive constituent of the enrichment culturesulfate-reducing bacteria. It has been demonstrated that triazoloazepine bromide increases the redox potential of the corrosive medium by up to 170 mV. This enables the change of enzymatic reactions direction and considerable inhibition of sulfate-reducing activity of the enrichment culture bacteria. The morphology of the copper coupons surface after the exposure to the corrosive medium with bacterial sulfate-reduction has been examined. It has been defined that without triazoloazepine bromide the biofilm is a chaotic accumulation of bacteria in the polymeric matrix. In the presence of triazoloazepine bromide, only individual bacteria can be observed in the corrosive medium on the surface of the biofilm, which has a loose structure. It has been estimated that triazoloazepine bromide decreases the rate of microbial copper corrosion by a factor of 11.7.

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“…Agaev [6] and others. We have also suggested a number of effective inhibitors-biocides for the inhibition of mild steel corrosion under the bacterial sulfate-reduction [7,8]. Out of all compounds, particular attention should be paid to secondary amines with the replaced phenyl and triazoloazepine substituents, which are multifunctional inhibitors.…”

Section: Introductionmentioning

confidence: 99%

Peculiarities of the effect of secondary amines with cyclic substituents on microbial steel corrosion

2018

Int. J. Corros. Scale Inhib.

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The effect of secondary amines with cyclic substituents (triazoloazepine, unsubstituted phenyl or substituted phenyl ones) on the microbial corrosion of low-carbon steel induced by sulfatereducing bacteria isolated from various technogenic media was studied. The compounds were obtained by reactions of 7-methoxy-3,4,5,6-tetrahydro-2H-azepine with hydrazides of substituted N-arylaminoacetic acids. It was found by gravimetric and electrochemical methods that secondary amines with p-methoxyphenyl and p-chlorophenyl substituents hinder steel corrosion in the neutral Postgate "B" water-salt medium, both in the presence of enrichment bacterial culture and the Desulfovibrio sp. M.4.1 strain. The highest inhibitive effect (a 2.13fold corrosion rate decrease) is shown by the compound with the p-chlorophenyl substituent. It has been shown that the effect of concentration within 0.5-2.0 g/l on the efficiency of biocorrosion inhibition is insignificant. The results obtained were explained by the antimicrobial action of secondary amines on sulfate-reducing bacteria and their satellites (ironreducing and denitrifying bacteria). Using energy dispersive spectroscopy, it has been shown that secondary amines studied can be adsorbed adsorb on mild steel surface under conditions of microbial corrosion in a water-salt medium with bacterial sulfate reduction. The surface layers were found to contain nitrogen contained in the elementary composition of the compounds, as well as chlorine in the case of the secondary amine with the p-chlorophenyl substituent. It has been found that the biofilm (a polymeric matrix consisting of bacterial excrements and corrosion products) is formed atop the film of adsorbed compounds. The inhibition effect is ensured only upon adsorption of compounds with antimicrobial properties toward sulfate-reducing bacteria. If secondary amines have no antimicrobial properties toward sulfate-reducing bacteria, iron sulfides are formed on the metal surface and microbial corrosion is accelerated.

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Quaternary Pyridinium Salts as Inhibitors of Mild Steel Biocorrosion

Cited by 10 publications

References 4 publications

Synthesis, Antibacterial and Anti-Corrosive Activity of 2,3-Dihydroimidazo[1,2-a]Pyridinium Bromides

Synthesis, Antibacterial and Anti-Corrosive Activity of 2,3-Dihydroimidazo[1,2-a]Pyridinium Bromides

The effect of triazoloazepine bromide with biocidal activity on microbial copper corrosion

Peculiarities of the effect of secondary amines with cyclic substituents on microbial steel corrosion

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