Tryptamine as a corrosion inhibitor of mild steel in hydrochloric acid solution

Lowmunkhong, Pongsak; Ungthararak, Dusit; Sutthivaiyakit, Pakawadee

doi:10.1016/j.corsci.2009.08.039

Cited by 189 publications

(66 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the E pzc of carbon steel in presence of HMTH is more negative. In HCl solution, the HMTH molecules may exist in protonated form in equilibrium, which is consistent with the points of Sudhish, 54,55 Pongsak, 56 Demet, 57 Moretti,58 who presented that organic inhibitors can turn to -onium ions in acid solutions and then adsorb on the negatively charged metals by electrostatic forces. In addition, Haoqing Wu has presented that the E pzc of metals can be more positive when cations absorb on the surface of metal.…”

Section: Scanning Electron Microscopy (Sem)supporting

confidence: 86%

Study of Adsorption Behavior and Inhibition Mechanism of Mild Steel in Hydrochloric Acid by a Novel Thiadiazole Derivative

Cong

et al. 2015

Electrochemistry

View full text Add to dashboard Cite

N′-(4-hydroxy-3-methoxybenzylidene)-2-(5-p-tolyl-1,3,4-thiadiazol-2-ylthio) acetohydrazide (HMTH) was studied as a novel corrosion inhibitor for carbon steel in hydrochloric acid solution by potentiodynamic polarization curves, electrochemical impedance spectroscopy (EIS), chronoamperometry (CA), cyclic voltammetry (CV) techniques and Quantum chemical calculation. The surface morphology of carbon steel in HCl solution in the absence and presence of HMTH was investigated by scanning electron microscopy (SEM). The mechanism of adsorption was determined from Fourier transform infrared spectroscopy (FTIR) and the potential of zero charge (E pzc ). HMTH was found to be an effective corrosion inhibitor by forming a stable adsorption layer on carbon steel.

show abstract

Section: Scanning Electron Microscopy (Sem)supporting

confidence: 86%

Study of Adsorption Behavior and Inhibition Mechanism of Mild Steel in Hydrochloric Acid by a Novel Thiadiazole Derivative

Cong

et al. 2015

Electrochemistry

View full text Add to dashboard Cite

show abstract

“…Previously, large numbers of organic compounds have been investigated as corrosion inhibitors for mild steel in HCl media [7][8][9][10][11]. Even though these compounds show good anticorrosive action, they are toxic in nature.…”

Section: Introductionmentioning

confidence: 99%

Inhibiting Effects of Rabeprazole Sulfide on the Corrosion of Mild Steel in Acidic Chloride Solution

Pavithra

Venkatesha

Kumar

2013

International Journal of Electrochemistry

View full text Add to dashboard Cite

The corrosion inhibition effect of Rabeprazole sulfide (RS) on mild steel in 1 M hydrochloric acid (HCl) was investigated using weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), and chronoamperometric measurements. Protection efficiency of RS increases with the concentration and decreases with the rise in temperature. Adsorption of RS on mild steel surface in 1 M HCl follows Langmuir adsorption isotherm. The kinetic and thermodynamic parameters governing the adsorption process were calculated and discussed. The polarization results suggest that RS performed as an excellent mixed-type inhibitor for mild steel corrosion in 1 M HCl.

show abstract

“…K ads is related to surface coverage (θ) from the Langmuir equation. The presence of impurities, flaws, etc., on studied stainless steel surfaces has a strong influence on results obtained for ΔG ads [78]. The amount of oxidized metal cations passed into the corrosive media is directly related to the extent of coverage of ROSO and ANL compound.…”

Section: Thermodynamics Of Corrosion Inhibitionmentioning

confidence: 97%

Pitting Corrosion Resistance and Inhibition of Lean Austenitic Stainless Steel Alloys

Loto¹

2017

Austenitic Stainless Steels - New Aspects

View full text Add to dashboard Cite

The pitting corrosion behavior of 301, 304 and 316 austenitic stainless steels in 2M H 2 SO 4 at 0-1.5% NaCl concentrations was investigated through potentiodynamic polarization and optical microscopy analysis. Electrochemical analysis of the pitting corrosion inhibition and surface protection properties of rosemary oil and aniline on the stainless was also performed. The corrosion rate, pitting potential, passivation potential, metastable pitting potential and surface morphology of both steels where significantly altered by changes in chloride concentration, differences in alloy composition and metallurgical properties of the steels. 316 steel had the lowest corrosion rate and highest pitting corrosion resistance followed by 301 steel. The surface morphology of 316 steel was slightly altered at 1.5% NaCl concentration while 301 steel appears to etch with grain boundaries appearing at higher chloride concentration. 304 steel showed no resistance to pitting after 0% NaCl coupled with relatively significant increase in corrosion rate values. Its surface morphology showed the presence of corrosion pits with respect to chloride and inhibitor concentration. Rosemary oil and aniline significantly reduced the corrosion rates values of the stainless steels and with consequent increase in their pitting corrosion resistance; however the compounds had no positive influence on the pitting corrosion behavior of 304 steel.

show abstract

Tryptamine as a corrosion inhibitor of mild steel in hydrochloric acid solution

Cited by 189 publications

References 34 publications

Study of Adsorption Behavior and Inhibition Mechanism of Mild Steel in Hydrochloric Acid by a Novel Thiadiazole Derivative

Study of Adsorption Behavior and Inhibition Mechanism of Mild Steel in Hydrochloric Acid by a Novel Thiadiazole Derivative

Inhibiting Effects of Rabeprazole Sulfide on the Corrosion of Mild Steel in Acidic Chloride Solution

Pitting Corrosion Resistance and Inhibition of Lean Austenitic Stainless Steel Alloys

Contact Info

Product

Resources

About