화학공학소재연구정보센터
Journal of Industrial and Engineering Chemistry, Vol.13, No.7, 1098-1102, December, 2007
Molar Excess Volume of Butyl Acetate with Cyclohexane or Aromatic Hydrocarbons at 298.15 K
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Molar excess volume (VE) of butyl acetate [BAc](A) + cyclohexane (B), +benzene (B), +toluene (B), +o-, +m- and +p-xylene (B) were measure at 298.15 K over the entire composition range with v-shaped dilatometer. The VE values for binary mixture containing cyclohexane or benzene were found to be positive, while these were negative for the BAc + toluene, +o-, +m- and +p-xylene over the entire composition range. The VE values for an equimolar mixture vary in the order: cyclohexane > benzene > toluene ≒ o-xylene > m-xylene > p-xylene. The results are qualitatively explained in terms of the breaking and stretching of dipole-dipole interactions in self-associated BAc and the formation of attractive interactions between polar carboxyl group of butyl acetate and π-electrons of aromatic hydrocarbons.
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