Thermodynamic and Kinetic Study of Zinc bis-(Dipalmithyl Dithiophosphate) Activity as Anti-Corrosion Additive-Fatty Acid Based Through Potentiodynamic Polarization Technique

Sutriah, Komar; Mas’ud, Zainal Alim; Khotib, Mohammad; Zuliandanu, Denar

doi:10.22146/ijc.21166

Cited by 2 publications

(2 citation statements)

References 7 publications

(36 reference statements)

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“…increase in the corrosion inhibition efficiency directly proportional to the increase in the fatty ester and amide concentrations. This was because of the higher number of inhibitor molecules adsorbed into the metal surface, while the concentration increase [15] was in good agreement with the value of surface coverage (θ) that increased with inhibitor concentration. Optimum efficiency was obtained at concentration 80 ppm with an %IE value of 88% [16].…”

Section: Figure 1 Hydrolysis Reaction Of Cposupporting

confidence: 74%

Reaction Products of Crude Palm Oil-based Fatty Acids and Monoethanolamine as Corrosion Inhibitors of Carbon Steel

Ali¹,

Irawadi²,

Darmawan³

et al. 2019

Makara J. Sci

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Herein we report the application of the reaction products of crude palm oil-based fatty acids and monoethanolamine as sustainable corrosion inhibitors in acidic environments for carbon steels. Reaction products were identified based on FTIR analysis as a mixture of 2-aminoethyl fatty esters and N-(2-hydroxyethyl) fatty amides. Corrosion inhibition effect of these compounds was evaluated by potentiodynamic polarization techniques in 0.5 M HCl. The mixture of fatty esters and fatty amides showed promising potential as an alternative corrosion inhibitor. Inhibition efficiency was found to be 80% at 80 ppm. Thermodynamic and kinetic parameters obtained from the tafel plot displayed an increase in activation energy with a higher inhibitor concentration that led to the decrease in the corrosion rate. Furthermore, physisorption interaction was found to be the main process of the inhibitor's adsorption on metal surfaces and obeyed the adsorption model of the Langmuir isotherm.

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Section: Figure 1 Hydrolysis Reaction Of Cposupporting

confidence: 74%

Reaction Products of Crude Palm Oil-based Fatty Acids and Monoethanolamine as Corrosion Inhibitors of Carbon Steel

Ali¹,

Irawadi²,

Darmawan³

et al. 2019

Makara J. Sci

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show abstract

“…Various corrosion prevention methods have been developed, including material selection, protective coatings, cathodic protection, and corrosion inhibitors [6]. Corrosion inhibitors were chosen in this study because of cheaper and easier to prepare and have good efficiency [7][8]. The materials are called corrosion inhibitors to minimize corrosion [9].…”

Section: ■ Introductionmentioning

confidence: 99%

Black Tea Waste as Corrosion Inhibitor for Carbon Steel in 0.5 M HCl Medium

Wulandari,

Zahratussaadah,

Nofrizal

et al. 2023

Indones. J. Chem.

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Indonesian black tea (BT) waste was utilized as a green corrosion inhibitor for carbon steel (CS) corrosion in a 0.5 M HCl medium. The BT extract was characterized using Fourier transform infra-red. The corrosion inhibition evaluation was studied using conventional weight loss methods, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS). Further, scanning electron microscopy-energy dispersive X-ray was applied to analyze the surface morphology of pure CS before and after contact with the inhibitor extract. After the addition of inhibitors, CS surface showed a better morphological transformation. The effect of oxygen contamination has also been studied in this research. The corrosion measurements of weight loss, potentiodynamic polarization, and EIS showed that the %IE BT extract was 84.70; 70.00; 72.80% at 0.20 g/L of inhibitor concentration. Adsorption isotherm studies have determined the reaction mechanism between the CS and inhibitor; in which the adsorption follows Langmuir. Gibbs free energy for the three methods is −16.62; −25.34; −24.35 kJ/mol, indicating electrostatic interaction (physisorption) between the metal surface and inhibitor. SEM and focus ion beam show that oxygen contamination can increase the corrosion rate resulting in CS damage. It shows that tea waste products can be used as an alternative corrosion inhibitor.

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Thermodynamic and Kinetic Study of Zinc bis-(Dipalmithyl Dithiophosphate) Activity as Anti-Corrosion Additive-Fatty Acid Based Through Potentiodynamic Polarization Technique

Abstract: Zinc bis-(dipalmithyl dithiophosphate) (ZDTP 16

Cited by 2 publications

References 7 publications

Reaction Products of Crude Palm Oil-based Fatty Acids and Monoethanolamine as Corrosion Inhibitors of Carbon Steel

Reaction Products of Crude Palm Oil-based Fatty Acids and Monoethanolamine as Corrosion Inhibitors of Carbon Steel

Black Tea Waste as Corrosion Inhibitor for Carbon Steel in 0.5 M HCl Medium

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