Inhibition of mild steel corrosion in sulfuric acid solution by new schiff base

Ahmed A. Al-Amiery, Abdul Amir H. Kadhum, Abdulhadi Kadihum, Abu Bakar Mohamad, Chong K. How, Sutiana Junaedi

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

The efficiency of Schiffbase derived from 4-aminoantipyrine, namely 2-(1,5-dimethyl-4-(2-methylbenzylidene)amino)-2-phenyl-1H-pyrazol-3(2H)-ylidene) hydrazinecarbothioamide as a corrosion inhibitor on mild steel in 1.0 M H2SO4 was investigated using electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PD) and electrochemical frequently modulation (EFM) in addition to the adsorption isotherm, corrosion kinetic parameters and scanning electron microscopy (SEM). The results showed that this inhibitor behaved as a good corrosion inhibitor, even at low concentration, with a mean efficiency of 93% and, also, a reduction of the inhibition efficiency as the solution temperature increases. A polarization technique and EIS were tested for different concentrations and different temperatures to reveal that this compound is adsorbed on the mild steel, therefore blocking the active sites, and the adsorption follows the Langmuir adsorption isotherm model. The excellent inhibition effectiveness of 2-(1,5-dimethyl-4-(2-methylbenzylidene)amino)-2-phenyl-1H-pyrazol-3(2H)-ylidene)hydrazinecarbothioamide was also verified by scanning electron microscope (SEM).

Original languageEnglish
Pages (from-to)787-804
Number of pages18
JournalMaterials
Volume7
Issue number2
DOIs
Publication statusPublished - 2014

Fingerprint

Steel corrosion
Schiff Bases
Corrosion inhibitors
Sulfuric acid
Carbon steel
Electrochemical impedance spectroscopy
Adsorption isotherms
Ampyrone
Potentiodynamic polarization
Kinetic parameters
Electron microscopes
Modulation
Polarization
Corrosion
Scanning
Adsorption
Temperature
Scanning electron microscopy
sulfuric acid

Keywords

  • Corrosion inhibitor
  • Electrochemical measurements
  • SEM

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Al-Amiery, A. A., Kadhum, A. A. H., Kadihum, A., Mohamad, A. B., How, C. K., & Junaedi, S. (2014). Inhibition of mild steel corrosion in sulfuric acid solution by new schiff base. Materials, 7(2), 787-804. https://doi.org/10.3390/ma7020787

Inhibition of mild steel corrosion in sulfuric acid solution by new schiff base. / Al-Amiery, Ahmed A.; Kadhum, Abdul Amir H.; Kadihum, Abdulhadi; Mohamad, Abu Bakar; How, Chong K.; Junaedi, Sutiana.

In: Materials, Vol. 7, No. 2, 2014, p. 787-804.

Research output: Contribution to journalArticle

Al-Amiery, AA, Kadhum, AAH, Kadihum, A, Mohamad, AB, How, CK & Junaedi, S 2014, 'Inhibition of mild steel corrosion in sulfuric acid solution by new schiff base', Materials, vol. 7, no. 2, pp. 787-804. https://doi.org/10.3390/ma7020787
Al-Amiery AA, Kadhum AAH, Kadihum A, Mohamad AB, How CK, Junaedi S. Inhibition of mild steel corrosion in sulfuric acid solution by new schiff base. Materials. 2014;7(2):787-804. https://doi.org/10.3390/ma7020787
Al-Amiery, Ahmed A. ; Kadhum, Abdul Amir H. ; Kadihum, Abdulhadi ; Mohamad, Abu Bakar ; How, Chong K. ; Junaedi, Sutiana. / Inhibition of mild steel corrosion in sulfuric acid solution by new schiff base. In: Materials. 2014 ; Vol. 7, No. 2. pp. 787-804.
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