Liquid densities of THF and excess volumes for the mixture with water in a wide temperature and pressure range
作者： Andre Schedemann , E. Christian Ihmels , Jürgen Gmehling
DOI: 10.1016/J.FLUID.2010.05.004
关键词: Work (thermodynamics) 、 Atmospheric temperature range 、 Molar volume 、 Chemistry 、 Tetrahydrofuran 、 Range (particle radiation) 、 Temperature and pressure 、 Spinodal decomposition 、 Thermodynamics 、 Equation of state
摘要: Abstract In this paper densities for THF (tetrahydrofuran) and THF + water mixtures measured with the help of Anton Paar DMA HPM vibrating tube densimeter are reported. The pure component tetrahydrofuran in temperature range from 278 to 437 K pressures up 130 MPa were correlated TRIDEN-System. Additionally binary mixture tetrahydrofuran + water 6 different concentrations a 288 338 K 130 MPa. Excess volumes ( v E ) determined using own correlation equation state (EoS) water by Wagner Prus. Redlich–Kister polynomials used fit -data . work it was checked if allows determination miscibility gap system THF–water as function pressure.
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