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Measurement and theoretical analysis of excess molar volumes of binary mixtures of some chloroalkanes + cyclic ketones between (288.15 – 318.15) K

Domenii publicaţii > Chimie + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Ciocirlan O., Teodorescu M., Dragoescu D., Iulian O., Barhala A.

Editorial: Ed. Printech, Proceedings of the 16th Romanian International Conference on Chemistry and Chemical Engineering, September 9 – 12, Sinaia, Romania (CD-ROM - ISBN 978-606-521-349-4), p.SIII 22-29, 2009.

Rezumat:

Excess molar volumes (VE) have been measured for binary liquid mixtures of cyclohexanone or cyclopentanone with 1,1,2,2-tetrachloroethane, 1,1,1-trichloroethane, trichloromethane, 1,2-dichloroethane, 1,3-dichloropropane, 1,4-dichlorobutane and 1-chlorobutane at T = (288.15, 298.15, 308.15, and 318.15) K and atmospheric pressure. The VE data were analysed with the Flory and Prigogine-Flory-Patterson (PFP) statistical theories of solutions. The obtained VE values are negative for the cyclohexanone or cyclopentanone + 1,1,2,2-tetrachloroethane, 1,1,1-trichloroethane, trichloromethane and 1-chlorobutane systems and positive for the other six binaries, over the whole composition range. Overall, the computed and experimental results are discussed in terms of molecular interactions between components and structural effects.

Cuvinte cheie: density, excess volume, cycloketones, chloroalkanes