Synthesis and Properties of Barakol Tailored for Fluorescent Biodiesel Marker

Abstract:

This work reports the synthesis and evaluation of barakol tailored to become biodiesel fluorescent markers. Fluorescent markers for biodiesel fuels were synthesized from the reaction between barakol, which was obtained from the leaves and flowers of Cassia siame Lamk., with acid chloride in the presence of triethylamine. These synthetic fluorescent markers were 7-lauroyloxy-5-acetonyl-2-methylchromone, 7-butyryloxy-5-acetonyl-2-methylchromone and 7-(2-ethyl)-hexanoyloxy-5-acetonyl-2-methylchromone. These synthetic fluorescent markers were invisible color in biodiesel fuels when they were added into biodiesel and quantitative measurement was carried out using spectrofluorometer. All compounds gave fluorescence at 612 nm when they were excited at 464 nm. The testing results of fuel properties using the ASTM test methods revealed that the physical properties of the marked biodiesel fuels were similar to those of the unmarked biodiesel fuels. Moreover, those synthetic fluorescent markers were found to be stable in diesel fuels for at least three months at a concentration of 4 ppm.

• Periodical: Applied Mechanics and Materials (Volumes 490-491)
• Pages: 168-171
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.490-491.168
• Online since: January 2014
• Authors: Thitiphan Chimsook*
• Keywords: Barakol, Biodiesel Maker, Fluorescent Marker

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