Some beta-Aminoketone Derivatives as Corrosion Inhibitors for Nickel in Hydrochloric Acid Solution

Elewady, G. Y.; El-Askalany, A. H.; Molouk, Ahmed Fathi Salem

doi:10.4152/pea.200806503

Cited by 13 publications

(11 citation statements)

References 19 publications

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“…Organic compounds containing hetero atoms in the functional groups, pi-electron in triple or conjugated double bonds and presence of aromatic rings in their structure are the major adsorption centres and are usually good inhibitors [17]. Several heterocyclic compounds such as methylthiophenyl derivatives [18], isoxazolium cationic Schiff base compounds [19], quinoline derivatives [20], sulphonamide compounds [21], thiadiazoles derivatives [22], imidazole derivatives [23], fluoroquinolones [24], pyrazole derivatives [25], pyridazine derivatives [26] and pyridine derivatives [27] have been reported as anticorrosion substances in various corrosive environments.…”

Section: Introductionmentioning

confidence: 99%

Corrosion inhibition effect and adsorption behaviour of nicotinamide derivatives on mild steel in hydrochloric acid solution

2014

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Background A new class of nicotinamide derivatives viz., N-((1H-pyrrol-2-yl)methylene)nicotinamide, N-((methyl-(phenyl)amino)methylene)nicotinamide, N-nicotinoylbenzimidothioic acid and N-(4-(methylthio)benzylidene)nicotinamide have been synthesized and their corrosion inhibition effect on mild steel in 0.5 M HCl was investigated by mass loss, Tafel polarization technique and AC impedance measurements. Results The inhibition efficiency of the inhibitors on mild steel in 0.5 M HCl has been studied based on concentration, time interval and temperature. Potentiodynamic polarization studies showed that all the examined inhibitors suppress both anodic and cathodic process and behave as mixed type of corrosion inhibitors. Conclusions The adsorption of all the inhibitors was found to obey Langmuir isotherm model. Electrochemical impedance data revealed that polarization resistance (R P ) increases and double layer capacitance (C dl ) decreases as the concentration of the inhibitors increases. FTIR, EDX and SEM analyses were performed to study the film persistency of the inhibitors.

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Section: Introductionmentioning

confidence: 99%

Corrosion inhibition effect and adsorption behaviour of nicotinamide derivatives on mild steel in hydrochloric acid solution

2014

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“…The effect of many pyrimidine derivatives namely, 2-aminopyrimidine, 4,6-dihydroxypyrimidine, 2,4-diaminopyrimidine, 2,4-diamino-6-hydroxypyrimidine, 2,4,6-triaminopyrimidine, 4,6-diamino-2-mercaptopyrimidine [7,8], 2,6-dimethylpyrimidine-2-amine, N-Benzylidene-4,6-dimethylpyrimidine-2-amine and 2-[(3,6-dimethylpyridimine-2-ylimino)methyl]-4-nitrophenol [9] in 2 M HCl; thymine, uracil, thymidine and uridine [10], 4,6-dihydroxy-2-mercaptopyrimidine [11], 5-(3,4,5-trimethoxybenzyl)pyrimidine-2,4-diamine [12], benzylidene-pyrimidin-2-yl-amine, (4-methyl-benzylidene)-pyrimidine-2-yl-amine and (4-chloro-benzylidene)-pyrimidine-2-yl-amine [13]…”

Section: Corrosion Inhibitorsmentioning

confidence: 99%

Pyrimidine derivatives as potential corrosion inhibitors for steel in acid medium – An overview

2018

Int. J. Corros. Scale Inhib.

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Acidic environments are widely used in several industrial operations, such as oil well acidification, acid pickling, acid cleaning and acid descaling, which generally lead to serious metallic corrosion. Despite the relatively limited corrosion resistance of carbon steel, it is widely used in marine applications, chemical processing, petroleum production and refining, construction and metal-processing equipments due to its excellent mechanical properties and low cost. Out of several methods, usage of corrosion inhibitor is one of the most important techniques for controlling the corrosion. Several organic inhibitors have been tried for the corrosion inhibition of steel, out of which organic compounds with more than one heteroatom containing pi-electrons are found to exhibit high inhibiting properties by providing electrons which interact with metal surface. However, the use of several heterocyclic inhibitors has caused negative effects on the environment because of their toxicity and nonbiodegradability. In this context, pyrimidine derivatives are found to attract great interest due to their environmentally benign properties. In this article, it is aimed to review the usefulness of pyrimidine derivatives for the corrosion inhibition of steel in acid medium.

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“…The choice for the frequencies of 2 and 5Hz was based on three arguments [18]. The larger peaks were used to calculate the corrosion current density (icorr), the Tafel slopes (β c and β a ) and the causality factors CF-2 and CF-3 [19].…”

Section: Electrochemical Frequency Modulation (Efm)mentioning

confidence: 99%

Cascabela Thevetia Plant Extract as Corrosion Inhibitor for Carbon Steel in Polluted Sodium Chloride Solution

As¹,

Emam²,

Refat³

et al. 2017

JAPLR

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Some beta-Aminoketone Derivatives as Corrosion Inhibitors for Nickel in Hydrochloric Acid Solution

Cited by 13 publications

References 19 publications

Corrosion inhibition effect and adsorption behaviour of nicotinamide derivatives on mild steel in hydrochloric acid solution

Corrosion inhibition effect and adsorption behaviour of nicotinamide derivatives on mild steel in hydrochloric acid solution

Pyrimidine derivatives as potential corrosion inhibitors for steel in acid medium – An overview

Cascabela Thevetia Plant Extract as Corrosion Inhibitor for Carbon Steel in Polluted Sodium Chloride Solution

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