Gas Chromatographic Determination of Fatty Acids in Oils with Regard to the Assessment of Fire Hazard

Bartošová Alica () and Štefko Tomáš ()
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Bartošová Alica: Slovak University of Technology in Bratislava, Faculty of Materials Science and Technology in Trnava, Institute of Integrated Safety, Ulica Jána Bottu 2781/25, 917 24Trnava, Slovak Republic
Štefko Tomáš: Slovak University of Technology in Bratislava, Faculty of Materials Science and Technology in Trnava, Institute of Integrated Safety, Ulica Jána Bottu 2781/25, 917 24Trnava, Slovak Republic

Research Papers Faculty of Materials Science and Technology Slovak University of Technology, 2017, vol. 25, issue 40, 73-81

Abstract: The aim of the paper was to study and research the application of processing gas chromatographic method for the rapid and accurate determination of the composition of different types of oils, such as substances with the possibility of an adverse event spontaneous combustion or self-heating. Tendency to spontaneous combustion is chemically characterized mainly by the amount of unsaturated fatty acids, which have one or more double bonds in their molecule. Vegetable oils essentially consist of the following fatty acids: palmitic, stearic, oleic, linoleic, and linoleic. For the needs of assessment, the fire hazard must be known, in which the double bond is present, as well as their number in a molecule. As an analytical method, GCMS was used for determination of oils content. Three types of oil were used - rapeseed, sunflower, and coconut oil. Owing to the occurrence of linoleic acid C18:2 (49.8 wt.%) and oleic acid C18:1 (43.3 wt.%) with double bonds, sunflower oil is the most prone to self-heating. The coconut and rapeseed oils contain double bond FAME in lesser amount, and their propensity to self-heating is relatively low.

Keywords: Gas chromatography; oil; fatty acid; ester; oxidation; saturation; fire (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:vrs:repfms:v:25:y:2017:i:40:p:73-81:n:9

DOI: 10.1515/rput-2017-0009

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