Synthesis and Evaluation of Some Quinoline Schiff Bases as a Corrosion Inhibitor for Mild Steel in 1 N HCl

Mistry, Bhupendra M.; Jauhari, Smita

doi:10.1080/01932691.2012.756378

Cited by 7 publications

(1 citation statement)

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“…A corrosion inhibitor is generally referred to as a chemical substance that when applied in small quantities to a corrosive medium reduces the rate of corrosion of a metal or a metal alloy [5,6]. Aromatic, aliphatic and heterocyclic amines have been extensively investigated as corrosion inhibitors [7,8]. Many researchers [9][10][11][12][13][14][15][16][17] studied corrosion inhibition of Zinc in HCl by using various organic compounds.…”

Section: Introductionmentioning

confidence: 99%

Diethylamine as corrosion inhibitor for zinc in hydrochloric acid solutions

2023

IRJMETS

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Inhibitory property of diethylamine on corrosion of zinc in HCl solution was investigated by weight loss, temperature effect and potentiodynamic polarization methods. As acid concentration increases corrosion rate increases while inhibition efficiency (I.E.) decreases. As temperature increases, corrosion rate increases while percentage of I.E. decreases. At constant acid concentration, the I.E. of diethylamine increases with increase in inhibitor concentration. Maximum I.E. of 97.26 % was found for 20 mM diethylamine in 0.01 M acid concentration. The negative sign of ΔGadsº was reflects that adsorption of the inhibitor is a spontaneous process. Positive value of ΔSa indicates corrosion process is entropically favorable. The mode of inhibitor action appears to be physiorption following the Langmuir adsorption isotherm. Tafel plots of polarization study indicates that diethylamine act as cathodic type inhibitor.

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Section: Introductionmentioning

confidence: 99%

Diethylamine as corrosion inhibitor for zinc in hydrochloric acid solutions

2023

IRJMETS

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Studies on the inhibitive effect of (Z)-4-chloro-N-((2-chloroquinolin-3-yl)methylene)aniline Schiff base on the corrosion of mild steel in 1 N HCl solution

Mistry

Jauhari

2014

Res Chem Intermed

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Effect of the alkyl chain of quaternary ammonium cationic surfactants on corrosion inhibition in hydrochloric acid solution

Gao

Zhang

Liu

et al. 2019

Comptes Rendus. Chimie

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In this study, the effect of the alkyl chain of quaternary ammonium cationic surfactants on corrosion inhibition in hydrochloric acid (HCl) solution was investigated by using dodecyl trimethyl ammonium chloride (DTAC), tetradecyl trimethyl ammonium chloride (TTAC), cetyl trimethyl ammonium chloride (CTAC), and octadecyl trimethyl ammonium chloride (OTAC) as corrosion inhibitors to uncover their structureeefficiency relationships. The effect of the alkyl chain of quaternary ammonium cationic surfactants on corrosion inhibition in HCl solution was studied under different conditions, such as corrosion inhibitor concentration, temperature, and acidity, and this was done using the weightlessness method. The results obtained show that these inhibitors have high corrosion inhibition effect on A 3 steel, and the corrosion inhibition efficiency is dependent on the length of the alkyl chain. At the same concentration, the longer the alkyl chain, the weaker the corrosion inhibition effect. When the temperature was 50 C and the concentration of corrosion inhibitor was 70 mg/L, the corrosion inhibition efficiency order of the four cationic surfactants was DTAC > TTAC > CTAC > OTAC. Besides, the experimental results obtained show that the adsorption of the inhibitor on the A 3 steel surface conforms to the Langmuir type isotherm, and then the corresponding adsorption thermodynamic parameters were obtained according to these parameters. It was observed that DH, DS, and E a increased with increase in the length of the alkyl chain. The adsorption of the inhibitor on the steel surface is an exothermic, spontaneous, entropy process.

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Synthesis and Evaluation of Some Quinoline Schiff Bases as a Corrosion Inhibitor for Mild Steel in 1 N HCl

Cited by 7 publications

References 50 publications

Diethylamine as corrosion inhibitor for zinc in hydrochloric acid solutions

Diethylamine as corrosion inhibitor for zinc in hydrochloric acid solutions

Studies on the inhibitive effect of (Z)-4-chloro-N-((2-chloroquinolin-3-yl)methylene)aniline Schiff base on the corrosion of mild steel in 1 N HCl solution

Effect of the alkyl chain of quaternary ammonium cationic surfactants on corrosion inhibition in hydrochloric acid solution

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