Abstract
The objective of this work was to determine ternary liquid-liquid equilibrium for eugenol + tert-butanol + water and eugenol + 1-octanol + water systems at 303.15K and atmospheric pressure. The experimental apparatus was 25 mL equilibrium cell equipped jacketed water connected to water bath to maintain equilibrium temperature at constant value. The procedure of this experiment was conducted by inserting mixture of eugenol + tert-butanol + water and eugenol + 1-octanol + water systems at certain composition into equilibrium cell. The solution was stirred for 4 hours and then was allowed for 20 hours in order to separate aqueous and organic phases completely. The equilibrium compositions of each phase were analysed using gas chromatography. The experimental data obtained in this work were correlated with NRTL and UNIQUAC models giving root standard mean deviation of 1.1% and 1.5%, respectively for eugenol + tert-butanol + water system and that of 2.8 % and 3.1%, respectively for eugenol + 1-octanol + water system. 1-octanol which has better capability than tert-butanol as a solvent for eugenol.
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