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PVT Property Measurements for Ethyl Propionate, Ethyl Butyrate, and Ethyl Penta...
Costa, Henrique F.; Gardas, Ramesh L.; Johnson, Irudayaraj; Fonseca, Isabel M. A.; Ferreira, Abel G. M.The results of PVT measurements of the liquid phase within the temperature range (298 to 393) K and up to 35 MPa are presented for some aliphatic esters. Measurements were made by means of a vibrating tube densimeter, model DMA 512P from Anton Parr. The calibration of the densimeter was performed with water and n-heptane as reference fluids. The experimental PVT data have been correlated by a Tait equation. Thi...
Densities and Derived Thermodynamic Properties of Imidazolium-, Pyridinium-, Py...
Gardas, Ramesh L.; Costa, Henrique F.; Freire, Mara G.; Carvalho, Pedro J.; Marrucho, Isabel M.; Fonseca, Isabel M. A.; Ferreira, Abel G. M.In the present work, experimental density measurements are reported along with the derived thermodynamic properties, such as the isothermal compressibility (κT), the isobaric expansivity (αp), and the thermal pressure coefficient (γv) for imidazolium-, pyridinium-, pyrrolidinium-, and piperidinium-based ionic liquids (ILs), namely, 1-ethyl-3-methylimidazolium trifluoromethanesulfonate [C2mim][CF3SO3], 3-methyl-...
Viscosity and Density of Water + Ethyl Acetate + Ethanol Mixtures at 298.15 and...
Pires, Rui M.; Costa, Henrique F.; Ferreira, Abel G. M.; Fonseca, Isabel M. A.The viscosities and densities of the ternary mixtures water + ethyl acetate + ethanol and their constituent binaries have been measured at 298.15 and 318.15 K and atmospheric pressure. The excess molar volumes, , and viscosity deviations, Δη, were calculated from density and viscosity, respectively. A rational function due to Myers and Scott was used to describe the composition dependence of these properties. T...
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