Ester estolida dari minyak biji Ricinus communis L untuk kegunaan biolubrikan

Translated title of the contribution: Estolide ester from Ricinus communis L. Seed oil for biolubricant purpose

Nazrizawati Ahmad Tajuddin, Nor Habibah Rosli, Noraishah Abdullah, Mohd Firdaus Mohd Yusoff, Jumat Salimon

Research output: Contribution to journalArticle

Abstract

Product of 2-ethylhexyl estolide ester formed from acid catalyst reaction was characterized by using Fourier Transform Infrared (FTIR) in conjunction to determine the functional groups presence. Meanwhile, Nuclear Magnetic Resonance (NMR) has been used to determine the structure's compounds. The present of ester group at 1738.23 cm-1 indicated that the formation of estolide ester has been occurred. The vibration peak of C-O occurred at 1174.60 cm-1 and 1117.10 cm-1 confirmed the formation of ester. Present of CH2 bending indicated the existence of long-chain compounds. Existent of ester methine signal at 3.8669 ppm indicated the estolide linkage in the 1H-NMR spectrum. On the other hand, two signals have been notified in the 13C-NMR spectrums. One signal appeared at 173.41 ppm indicated the existence of carbonyl acid compound while carbonyl ester's signal appeared at 173.56 ppm. Chemical shift of 1H and 13C for stimulation and experiment were matched with estolide structure. Result of pour point, flash point and viscosity indicated that estolide 2-ethylhexyl ester meet the lubricant criteria as they possesses low pour points (-6 °C), high flash point (246 °C) and optimum viscosity (179 cps).

Original languageUndefined/Unknown
Pages (from-to)85-93
Number of pages9
JournalMalaysian Journal of Analytical Sciences
Volume18
Issue number1
Publication statusPublished - 2014

Fingerprint

Oilseeds
Esters
Nuclear magnetic resonance
Viscosity
Carbonyl compounds
Acids
Chemical shift
Functional groups
Lubricants
Fourier transforms
Infrared radiation
Catalysts

Keywords

  • Biolubricant
  • Castor oil
  • Estolide ester
  • Flash point
  • Pour point
  • Viscosity

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Ester estolida dari minyak biji Ricinus communis L untuk kegunaan biolubrikan. / Tajuddin, Nazrizawati Ahmad; Rosli, Nor Habibah; Abdullah, Noraishah; Mohd Yusoff, Mohd Firdaus; Salimon, Jumat.

In: Malaysian Journal of Analytical Sciences, Vol. 18, No. 1, 2014, p. 85-93.

Research output: Contribution to journalArticle

Tajuddin, Nazrizawati Ahmad ; Rosli, Nor Habibah ; Abdullah, Noraishah ; Mohd Yusoff, Mohd Firdaus ; Salimon, Jumat. / Ester estolida dari minyak biji Ricinus communis L untuk kegunaan biolubrikan. In: Malaysian Journal of Analytical Sciences. 2014 ; Vol. 18, No. 1. pp. 85-93.
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AU - Salimon, Jumat

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