title: Synthesis, spectroscopic and chromatographic studies of sunflower oil biodiesel using optimized base catalyzed methanolysis.
abstract: Methyl esters from vegetable oils have attracted a great deal of interest as substitute for petrodiesel to reduce dependence on imported petroleum and provide an alternate and sustainable source for fuel with more benign environmental properties. In the present study biodiesel was prepared from sunflower seed oil by transesterification by alkali-catalyzed methanolysis. The fuel properties of sunflower oil biodiesel were determined and discussed in the light of ASTM D6751 standards for biodiesel. The sunflower oil biodiesel was chemically characterized with analytical techniques like FT-IR, and NMR ((1)H and (13)C). The chemical composition of sunflower oil biodiesel was determined by GC-MS. Various fatty acid methyl esters (FAMEs) were identified by retention time data and verified by mass fragmentation patterns. The percentage conversion of triglycerides to the corresponding methyl esters determined by (1)H NMR was 87.33% which was quite in good agreement with the practically observed yield of 85.1%.
authors.affiliation: Department of Geology, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors.forename: Rizwana
authors.initials: R
authors.lastname: Naureen
authors.affiliation: Department of Chemistry, Bahauddin Zakariya University, 60000 Multan, Pakistan.
authors.forename: Muhammad
authors.initials: M
authors.lastname: Tariq
authors.affiliation: Department of Geology, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors.forename: Ismail
authors.initials: I
authors.lastname: Yusoff
authors.affiliation: Kulliyyah of Science, International Islamic University Malaysia, 25200 Kuantan, Pahang, Malaysia.
authors.forename: Ahmed Jalal Khan
authors.initials: AJ
authors.lastname: Chowdhury
authors.affiliation: Department of Geology, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors.forename: Muhammad Aqeel
authors.initials: MA
authors.lastname: Ashraf
keywords: Mass fragmentation; Methanolysis; Retention time; Sunflower; Transesterification