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  • 1
    Electronic Resource
    Electronic Resource
    Density and viscosity of linear perfluoropolyethers under high pressures (1989)
    Springer
    International journal of thermophysics 10 (1989), S. 857-870 
    Details
    ISSN: 1572-9567
    Keywords: compressibility ; density ; fluorocarbon oil ; free-volume equation ; high pressure ; perfluoropolyether ; specific volume ; Tait equation ; viscosity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract New experimental data on the density and viscosity of linear, unbranched perfluoropolyethers are presented at temperatures from 273 to 333 K and pressures up to 180 MPa. The measurements were carried out by a high-pressure burrette apparatus and a falling-cylinder viscometer. The uncertainties of the measurements are estimated to be less than 0.09% for the specific volume and 2.5% for the viscosity. The P-V data at each temperature are correlated satisfactorily by the Tait equation. The viscosity data are also analyzed and correlated with pressure or molar volume by several empirical and theoretical equations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00514481
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Volumetric behavior of pure alcohols and their water mixtures under high pressure (1987)
    Springer
    International journal of thermophysics 8 (1987), S. 47-70 
    Details
    ISSN: 1572-9567
    Keywords: alcohols ; aqueous mixtures ; butanols ; compressibility ; ethanol ; excess volume ; high pressure ; methanol ; propanols ; specific volume ; Tait equation ; water
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The specific volumes of C1-C4 alcohols and binary mixtures of water with methanol, ethanol, 1-propanol, 2-propanol, and 2-methyl-2-propanol are presented as functions of temperature, pressure, and composition. The measurements were carried out using a modified Adams piezometer and a high-pressure burette method in a temperature range from 283.15 to 348.15 K at pressures up to 350 MPa. The uncertainties in the specific volume obtained are estimated to be less than 0.09%. The specific volumes of the pure alcohols and their mixtures with water are found to decrease monotonously with increasing pressure. The numerical P-V relations at each temperature and composition are correlated satisfactorily as a function of pressure by the Tait equation. Definite inflections appear on the isobars of isothermal compressibility or partial molar volume versus composition of alcohol + water mixtures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00503224
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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