RT info:eu-repo/semantics/article
T1 Thermodynamics of binary mixtures 1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane (HFE-7200) + 2-propanol: High pressure density, speed of sound and derivative properties
A1 Muñoz Rujas, Natalia
A1 Aguilar Romero, Fernando
A1 García Alonso, Jesús Marcos
A1 Montero García, Eduardo
K1 1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane
K1 2-propanol
K1 Density
K1 Derivative properties
K1 Excess volumes
K1 Química
K1 Chemistry
K1 Termodinámica
K1 Thermodynamics
AB Awareness about environmental impact of greenhouse gas emissions has lead to search for other alternatives which can cover the same utility range of wellknown CFCs, HCFCs and PFCs but without their undesirable effects on the planet. Since Hydrofluoroether fluids (HFEs) have emerged as a good alternative, it is necessary to characterize their thermophysical properties in order to bring reliable data to the industry. Density and speed of sound are two of the most important physical properties because of the amount of information that they provide in the design of the machinery involved in the utilization of these fluids as well as data for the parametrization of equations of state. This paper reports a set of new data concerning high pressure density, ρ, for the binary mixture x HFE-7200 + (1 − x) 2-propanol in a broad range of pressures (0.1–140 MPa), and at several temperatures (from 293.15 to 393.15 K). Density values were correlated by employing a Tait-like equation in the same p, T ranges, and the derivative properties, that is, the isothermal compressibility κT, and the isobaric expansion αP, were determined. Excess molar volumes VE, which bring information about the change in volume observed in the mixture were also calculated for the eight mole fractions investigated. Speeds of sound, c, at 0.1 MPa were measured experimentally in the temperature range (293.15–333.15 K). By using the Laplace equation, isentropic compressibilities, κS, were calculated from density and sound velocity values.
PB Elsevier
SN 0021-9614
YR 2019
FD 2019-04
LK http://hdl.handle.net/10259/5342
UL http://hdl.handle.net/10259/5342
LA eng
DS Repositorio Institucional de la Universidad de Burgos
RD 04-dic-2024