Inhibition of aluminum corrosion by phthalazinone and synergistic effect of halide ion in 1.0 M HCl

Ahmed Y. Musa, Abdul Amir H. Kadhum, Abu Bakar Mohamad, Mohd Sobri Takriff, Eng Pei Chee

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

The inhibitive effects of 1-(2H)-phthalazinone (PTO) for aluminum alloy (2024) corrosion in 1.0 M HCl solution and the synergistic effect of KI on the corrosion inhibition efficiency were assessed using electrochemical measurements. Results showed that the inhibition efficiency increased with an increase in concentration of the PTO and synergistically increased with addition of KI. Adsorption characteristic of PTO molecules in absence and presence of KI was approximated by Freundlich and Langmuir adsorption isotherm models, respectively. The synergistic effect is found to decrease with increase in the concentration of PTO and a competitive inhibition mechanism exists between KI and PTO cations.

Original languageEnglish
Pages (from-to)325-330
Number of pages6
JournalCurrent Applied Physics
Volume12
Issue number1
DOIs
Publication statusPublished - Jan 2012

Fingerprint

Aluminum corrosion
halides
corrosion
Ions
Corrosion
aluminum
Adsorption isotherms
Cations
Aluminum alloys
ions
adsorption
Positive ions
Adsorption
aluminum alloys
Molecules
isotherms
cations
molecules

Keywords

  • Acid corrosion
  • Corrosion inhibitor
  • Electrochemical measurements
  • Synergistic effects

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Inhibition of aluminum corrosion by phthalazinone and synergistic effect of halide ion in 1.0 M HCl. / Musa, Ahmed Y.; Kadhum, Abdul Amir H.; Mohamad, Abu Bakar; Takriff, Mohd Sobri; Chee, Eng Pei.

In: Current Applied Physics, Vol. 12, No. 1, 01.2012, p. 325-330.

Research output: Contribution to journalArticle

Musa, Ahmed Y. ; Kadhum, Abdul Amir H. ; Mohamad, Abu Bakar ; Takriff, Mohd Sobri ; Chee, Eng Pei. / Inhibition of aluminum corrosion by phthalazinone and synergistic effect of halide ion in 1.0 M HCl. In: Current Applied Physics. 2012 ; Vol. 12, No. 1. pp. 325-330.
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