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The fundamental physical properties including density, viscosity, refractive index and relative permittivity, have been measured for binary mixtures of exo-tetrahydrodicyclopentadiene (JP-10) with four octane isomers (n-octane, 3-methylheptane, 2,4-dimethylhexane and 2,2,4-trimethylpentane) over the whole composition range at temperatures T = (293.15 to 313.15) K and pressure p = 0.1 MPa. The values of excess molar volume , viscosity deviation (Δη), refractive index deviation (ΔnD) and relative permittivity deviation (Δεr) are then calculated. All of the values of and Δη are observed to be negative, while those of ΔnD and Δεr are close to zero. The effects of temperature and composition on the variation of values are discussed. The negative values of and Δη are conductive to high-density and low-resistance of fuels, which is favorable for the design and preparation of advanced hydrocarbon fuels. 相似文献
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Densities and viscosities of binary mixtures of {methyl tert-butyl ether (MTBE) + methanol, or +ethanol, or +1-propanol, or +2-propanol, or +1-butanol, or +1-pentanol, or +1-hexanol} have been determined as a function of composition at several temperatures and atmospheric pressure. The temperatures studied were (293.15, 298.15, 303.15, and 308.15) K. The experimental results have been used to calculate the excess molar volume and viscosity deviation (Δη). Both and Δη values were negative over the entire range of mole fraction for all temperatures and systems studied. Moreover, the values have been used to test the applicability of the Extended Real Associated Solution (ERAS) model. 相似文献
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The values of the density were measured for binary liquid mixtures of benzene and toluene with dichloromethane over entire range of concentration using a vibrating-tube densimeter at T = (288.15, 293.15, 298.15, and 303.15) K and atmospheric pressure. The excess molar volumes, calculated from the density results, are positive for the systems of dichloromethane with benzene over the whole concentration range and present an approximate sigmoid curve for the dichloromethane with toluene. The values have been fitted to the Redlich–Kister polynomial equation, and other volumetric properties such as the partial molar volumes, , the apparent molar volume, V?i, and the partial molar excess volumes at infinite dilution, , were calculated over the whole composition range. The Prigogine–Flory–Patterson (PFP) theory and its applicability in predicting at T = 298.15 K are tested. Good agreement was found for the mixtures dichloromethane with benzene. For the mixtures dichloromethane with toluene, which shows an approximate S-shaped behaviour, the correlation fails. 相似文献
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