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S. V. Kurdakova, N. A. Kovalenko, I. A. Uspenskaya
Thermodynamic
properties of solutions in the system o-xylene−di-2-(ethylhexyl)phosphoric
acid
Abstract
Saturated vapor
pressure in temperature range 298.15−308.15 K and density of solutions in
the system o-xylene − di-2(ethylhexyl)phosphoric acid at 298.15 K were
measured. Activity coefficients of o-xylene in the investigated temperature
range were calculated based on these data. Parameters of the thermodynamic
model UNIQUAC were defined and
analytical relationships to describe the bulk properties of the solution were
proposed.
Key words: vapor
pressure, activity coefficients, density, di-2(ethylhexyl)phosphoric acid, o-xylene,
excess molar volume.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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