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Densities and excess volumes of pentan-3-one + 1,2-dichloroethane, +1,3-dichloropropane, + 1,4-dichlorobutane, + trichloromethane, + 1,1,1-trichloroethane, + 1,1,2,2-tetrachloroethane binary mixtures at 298.15 K

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

Autori: Teodorescu M., Linek J.

Editorial: Fluid Phase Equilibria, 146, p.155-160, 1998.

Rezumat:

Densities and excess molar volumes, VE, of pentan-3-one + 1,2-dichloroethane, + 1,3-dichloropropane, + 1,4-dichlorobutane, + trichloromethane, + 1,1,1-trichloroethane, + 1,1,2,2-tetrachloroethane are presented at 298.15 K and atmospheric pressure over the whole composition range. These measurements were performed in order to complement the data on VLE [M. Teodorescu, A. Barhala, O. Landauer, ELDATA: Int. Electron. J. Physico-Chem. Data 3 (1997) 101-108; M. Teodorescu, K. Aim, I. Wichterle, Fluid Phase Equilibria, in press] and to investigate the influence of molecular structure of these chloroalkanes on VE in their mixtures with pentan-3-one. At this temperature, VE was found to be slightly positive at high mole fractions and slightly negative at low mole fractions of 1,2-dichloroethane in case of the first system. For all the other systems, VE was negative. The VE experimental results were correlated using the fourth-order Redlich-Kister equation, and the maximum likelihood procedure was applied for evaluating the adjustable parameters.

Cuvinte cheie: chloroalkanes, pentan-3-one, mixtures, experiment, data, densities, excess volumes