A novel hydrazinecarbothioamide as a potential corrosion inhibitor for mild steel in HCL

Ahmed A. Al-Amiery, Abdul Amir H. Kadhum, Abu Bakar Mohamad, Sutiana Junaedi

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

2-(1-methyl-4-((E)-(2-methylbenzylidene)amino)-2-phenyl-1H-pyrazol-3(2H)-ylidene)-hydrazineecarbothioamide (HCB) was synthesized as a corrosion inhibitor from the reaction of 4-aminoantipyrine, thiosemicarbazide and 2-methylbenzaldehyde. The corrosion inhibitory effects of HCB on mild steel in 1.0 M HCl were investigated using potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS). The results showed that HCB inhibited mild steel corrosion in acidic solution and inhibition efficiency increased with an increase in the concentration of the inhibitor. The inhibition efficiency was up to 96.5% at 5.0 mM. Changes in the impedance parameters suggested that HCB adsorbed on the surface of mild steel, leading to the formation of a protective film. The novel corrosion inhibitor synthesized in the present study was characterized using Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR) spectral data.

Original languageEnglish
Pages (from-to)1420-1431
Number of pages12
JournalMaterials
Volume6
Issue number4
DOIs
Publication statusPublished - 2013

Fingerprint

Hexachlorobenzene
Corrosion inhibitors
Carbon steel
Steel corrosion
Ampyrone
Potentiodynamic polarization
Protective coatings
Electrochemical impedance spectroscopy
Fourier transform infrared spectroscopy
Nuclear magnetic resonance
Corrosion

Keywords

  • Corrosion inhibition
  • EIS
  • HCB
  • Mild steel
  • Thiosemicarbazide

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

A novel hydrazinecarbothioamide as a potential corrosion inhibitor for mild steel in HCL. / Al-Amiery, Ahmed A.; Kadhum, Abdul Amir H.; Mohamad, Abu Bakar; Junaedi, Sutiana.

In: Materials, Vol. 6, No. 4, 2013, p. 1420-1431.

Research output: Contribution to journalArticle

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AU - Kadhum, Abdul Amir H.

AU - Mohamad, Abu Bakar

AU - Junaedi, Sutiana

PY - 2013

Y1 - 2013

N2 - 2-(1-methyl-4-((E)-(2-methylbenzylidene)amino)-2-phenyl-1H-pyrazol-3(2H)-ylidene)-hydrazineecarbothioamide (HCB) was synthesized as a corrosion inhibitor from the reaction of 4-aminoantipyrine, thiosemicarbazide and 2-methylbenzaldehyde. The corrosion inhibitory effects of HCB on mild steel in 1.0 M HCl were investigated using potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS). The results showed that HCB inhibited mild steel corrosion in acidic solution and inhibition efficiency increased with an increase in the concentration of the inhibitor. The inhibition efficiency was up to 96.5% at 5.0 mM. Changes in the impedance parameters suggested that HCB adsorbed on the surface of mild steel, leading to the formation of a protective film. The novel corrosion inhibitor synthesized in the present study was characterized using Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR) spectral data.

AB - 2-(1-methyl-4-((E)-(2-methylbenzylidene)amino)-2-phenyl-1H-pyrazol-3(2H)-ylidene)-hydrazineecarbothioamide (HCB) was synthesized as a corrosion inhibitor from the reaction of 4-aminoantipyrine, thiosemicarbazide and 2-methylbenzaldehyde. The corrosion inhibitory effects of HCB on mild steel in 1.0 M HCl were investigated using potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS). The results showed that HCB inhibited mild steel corrosion in acidic solution and inhibition efficiency increased with an increase in the concentration of the inhibitor. The inhibition efficiency was up to 96.5% at 5.0 mM. Changes in the impedance parameters suggested that HCB adsorbed on the surface of mild steel, leading to the formation of a protective film. The novel corrosion inhibitor synthesized in the present study was characterized using Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR) spectral data.

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KW - Thiosemicarbazide

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