Inhibitive impacts extract of citrus aurantium leaves of carbon steel in corrosive media

Rifat Mohammed Dakhil, Tayser Sumer Gaaz, Ahmed A. Al-Amiery, Abdul Amir H. Kadhum

Research output: Contribution to journalArticle

Abstract

Relatively inexpensive, stable plant extract, namely Citrus aurantium leaves, was employed as highly efficient inhibitor of carbon steel corrosion by corrosive acid. The inhibition efficiency was estimated based on the weight loss method. Inhibition impacts of researched inhibitor increase with the concentration of the plant extract increase. The inhibition efficiency depends on three factors: molecular structure, concentration, and molecular weight of the inhibitor. Inhibition efficiency of 81.2% was achieved with 20% (v/v) of the extract in 1 M hydrochloric acid during 3 h at 25°C. The effect of temperature was also investigated and activation parameters were evaluated. Inhibition adsorption characteristics were approximated by Langmuir adsorption isotherm. Chemical adsorption mechanism was proposed for the studied inhibitor from the trend of inhibition performance and temperature degree in addition to activation energy values and heat of adsorption.

Original languageEnglish
Pages (from-to)559-566
Number of pages8
JournalGreen Chemistry Letters and Reviews
Volume11
Issue number4
DOIs
Publication statusPublished - 2 Oct 2018

Fingerprint

Caustics
Carbon steel
steel
Plant Extracts
Adsorption
inhibitor
carbon
adsorption
plant extract
Steel corrosion
Hydrochloric Acid
Corrosion inhibitors
Adsorption isotherms
Molecular structure
Activation energy
Chemical activation
Molecular weight
Temperature
Acids
hydrochloric acid

Keywords

  • Adsorption
  • Carbon steel
  • Citrus aurantium
  • Corrosion inhibition
  • Hydrochloric acid solution

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry

Cite this

Inhibitive impacts extract of citrus aurantium leaves of carbon steel in corrosive media. / Dakhil, Rifat Mohammed; Gaaz, Tayser Sumer; Al-Amiery, Ahmed A.; Kadhum, Abdul Amir H.

In: Green Chemistry Letters and Reviews, Vol. 11, No. 4, 02.10.2018, p. 559-566.

Research output: Contribution to journalArticle

Dakhil, Rifat Mohammed ; Gaaz, Tayser Sumer ; Al-Amiery, Ahmed A. ; Kadhum, Abdul Amir H. / Inhibitive impacts extract of citrus aurantium leaves of carbon steel in corrosive media. In: Green Chemistry Letters and Reviews. 2018 ; Vol. 11, No. 4. pp. 559-566.
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