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  • 1990-1994  (4)
  • viscosity  (3)
  • compressibility
  • thermal conductivity
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    International journal of thermophysics 12 (1991), S. 245-264 
    ISSN: 1572-9567
    Keywords: alkanes ; cyclohexane ; density ; dodecane ; hexadecane ; mixtures ; octane ; Tait equation ; viscometer ; viscosity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The viscosity and density of three binary mixtures of cyclohexane with n-octane, n-dodecane, and n-hexadecane have been measured at 298, 323, and 348 K at pressures up to 150 MPa or freezing pressures. The measurements of the viscosity were performed by a torsionally vibrating crystal viscometer on a relative basis using benzene and cyclohexane as reference materials. The density was measured using a high-pressure burette apparatus. The uncertainties of the measurements are estimated to be less than 2% for viscosity and 0.1% for density, respectively. The effects of temperature, pressure, density, and composition on the viscosity are discussed. Applicabilities of several empirical correlating equations to the viscosity data were examined.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    International journal of thermophysics 12 (1991), S. 949-963 
    ISSN: 1572-9567
    Keywords: coaxial-cylinder method ; fluorocarbons ; halogenated ethane ; R134a ; R143a ; R141b ; R142b ; refrigerants ; thermal conductivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The thermal conductivity of new environmentally acceptable fluorocarbons HFC-134a (CH2FCF3), HFC-143a (CH3CF3), HCFC-141b (CH3CCl2F), and HCFC-142b (CH3CCl2F) in the gaseous phase has been measured in the temperature range 293–353 K at pressures up to 4 MPa. The thermal conductivity has been measured with a coaxial-cylinder cell on a relative basis. The apparatus was calibrated with He, Ne, Ar, Kr, N2, CH4, and SF6 as reference fluids. The uncertainty of the experimental data obtained is estimated to be within 2% except for the uncertainty associated with the reference thermal-conductivity values. The excess thermal conductivity has been correlated satisfactorily as a function of density.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    International journal of thermophysics 12 (1991), S. 459-468 
    ISSN: 1572-9567
    Keywords: alcohols ; capillary viscometer ; methanol ; 2-methyl-2-propanol ; viscosity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A new capillary viscometer has been constructed and the viscosities of methanol, 2-methyl-2-propanol, and their mixtures have been measured at two temperatures, 303 and 323 K, and at pressures up to 30 MPa. Simple empirical equations are given to represent the pressure and composition dependences of the viscosity within the experimental uncertainty of ±2%.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    International journal of thermophysics 14 (1993), S. 67-77 
    ISSN: 1572-9567
    Keywords: benzene ; cyclohexane ; deuteriobenzene ; isotope effect ; molar volume ; viscosity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Viscosities of binary mixtures of cyclohexane with protiobenzene, C6H6, or deuteriobenzene, C6D6, have been measured at 298 and 323 K and at pressures up to 50 MPa using a capillary viscometer. The viscosities of these mixtures obtained were represented by a empirical Tait-type equation within the experimental uncertainty of ±2%. The effect of the isotopic substitution on the viscosity has been discussed.
    Type of Medium: Electronic Resource
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