Synergistic inhibition effect of 2-mercaptobenzothiazole and Tween-80 on the corrosion of brass in NaCl solution

Ramji, Karpagavalli; Cairns, Darran R.; Rajeswari, S.

doi:10.1016/j.apsusc.2008.01.031

Cited by 85 publications

(38 citation statements)

References 38 publications

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“…These values differ considerably from those reported in [38] in which an attempt to separate the two states is done. However, the low spectrometer resolution makes this deconvolution highly doubtful.…”

Section: Resultscontrasting

confidence: 55%

“…As mentioned above, the XPS Zn2p 3/2 peak for metallic state is undistinguishable from that of Zn 2+ [30][31][32][33][34][35][36][37][38]. In such cases, ZnLMM Auger transitions induced by X-ray radiation (Fig.…”

Section: Resultsmentioning

confidence: 85%

“…In many studies [28,[31][32][33][34][35][36][37][38] it has been shown that the Cu2p 3/2 peak positions of metallic copper (932.6 eV) and Cu 2 O (932.8 eV) almost coincide. These values differ considerably from those reported in [38] in which an attempt to separate the two states is done.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Electrochemical and XPS study of 2-merсaptobenzothiazole nanolayers on zinc and copper surface

Arkhipushkin¹,

Pronin²,

Vesely³

et al. 2014

Int. J. Corros. Scale Inhib.

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The electrochemical behavior of copper and zinc in neutral (рН 7.4) borate buffer solution with addition of 0.5 M NaCl and the effect of 2-merсaptobenzothiazole (MBT) on the electrochemical processes and adsorption on these metals has been studied by means of electrochemistry and X-ray photoelectron spectroscopy (XPS). The formation of MBTmetal cation complex films on copper and zinc surface has been shown. The effect of corrosive media composition and time-dependent relations of nanoscale film growth on the surface of the metals investigated have been determined. It was assumed that adsorbed MBT anion forms M(MBT) х , a polymeric complex where M = Cu + (x = 1) or Zn 2+ (x = 2).

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Section: Resultscontrasting

confidence: 55%

Section: Resultsmentioning

confidence: 85%

See 1 more Smart Citation

Electrochemical and XPS study of 2-merсaptobenzothiazole nanolayers on zinc and copper surface

Arkhipushkin¹,

Pronin²,

Vesely³

et al. 2014

Int. J. Corros. Scale Inhib.

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“…During the years of examinations of dissolution of metals and alloys in chloride solutions, different ways were revealed to slow down the oxidative processes in such media. One of the easiest and least expensive methods is application of organic inhibitors [9][10][11][12]. Nevertheless, most compounds that can be used as copper and brass corrosion inhibitors are toxic and nonbiodegradable and pose a threat to environmental protection.…”

Section: Introductionmentioning

confidence: 99%

Protection of Brass in HCl Solution by L‐Cysteine and Cationic Surfactant

Radovanović

Tasić

Mihajlović

et al. 2018

Advances in Materials Science and Engineering

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Electrochemical behavior of brass and inhibitory effect of L-cysteine in HCl solution are investigated using electrochemical techniques in addition to SEM-EDS analysis. Results show that inhibition efficiency depends on inhibitor concentration and immersion time of brass electrode in inhibitor solution. Electrochemical test results point to formation of Cu(I)-cysteine complex on the brass surface in chloride solutions with addition of different amounts of cysteine. e formed complex has an important role in inhibition of the corrosion process in the examined media because Cu(I)-cysteine significantly reduces dissolution of brass. Curves obtained in acidic solution in the presence of cysteine after pretreatment in sodium dodecyl sulfate (SDS) by cyclic measurements and potentiodynamic polarization measurements indicate intense inhibition of corrosion processes. Efficient inhibition of brass dissolution is result of formation of a stable protective layer on the brass surface after pretreatment of the electrode in SDS solution. e brass surface is modified in sodium dodecyl sulfate solution in order to increase cysteine adsorption on the electrode surface and to improve inhibition efficiency. Inhibition mechanism of cysteine includes adsorption on active sites on the electrode surface, which is confirmed by SEM-EDS analysis of brass. Adsorption of cysteine in hydrochloric acid solution obeys the Langmuir adsorption isotherm. Also, Gibbs free energy of adsorption has a value of −31.5 kJ/mol and indicates strong adsorption of cysteine on the electrode surface.

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“…Organic compounds are used as inhibitors due to the presence of a hetero-atoms acting as an active center for adsorption on the metallic surface [3]. The use of benzothiazoles as corrosion inhibitors for steel [4][5][6][7][8][9], copper [10][11][12][13][14], and brass [15] has been studied in different media. Studies their use as corrosion of zinc are sparse [16].…”

Section: Introductionmentioning

confidence: 99%

Inhibition of Brass Corrosion in Acid Medium Using Thiazoles

Taha

Mohamed

Khalil

et al. 2013

ILCPA

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Brass as an alloy composed mainly of copper is great industrial uses such as heat exchangers and similar other facility due to its good thermal properties. Due to the presence of the considerable ratio of zinc the alloy suffers from zinc dissolution or dezincification. Dezincification rate increases with the increase in the ratio of zinc in the alloy. In this study benzothiazole (BTH) and its substituent's 2-methylbenzothiazole (MeBTH), 2-aminobenzothiazole (ABTH), 2-mercaptobenzothiazole (MBTH) and 2-phenylbenzothiazole (PhBTH) have been used as corrosion inhibitors for α-brass in stirred 0.1 M HClO 4 . The methods of investigation include weight loss, Tafel and linear polarizations and electrochemical impedance spectroscopy. The order of inhibition efficiency (% E) was calculated and the values obtained has indicated the sequence of inhibition efficiency was found to be BTH < MeBTH < ABTH < PhBTH < MBTH. The calculated values of thermodynamic parameters support this order. The inhibitors were found to suppress the corrosion rate by the formation of films which were identified by IR, SEM and EDAX techniques.

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Synergistic inhibition effect of 2-mercaptobenzothiazole and Tween-80 on the corrosion of brass in NaCl solution

Cited by 85 publications

References 38 publications

Electrochemical and XPS study of 2-merсaptobenzothiazole nanolayers on zinc and copper surface

Electrochemical and XPS study of 2-merсaptobenzothiazole nanolayers on zinc and copper surface

Protection of Brass in HCl Solution by L‐Cysteine and Cationic Surfactant

Inhibition of Brass Corrosion in Acid Medium Using Thiazoles

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