The density and viscosity of n-heptane have been simultaneously measured over the temperature range from 298K to 470K and at pressures up to 245MPa using the hydrostatic weighing and falling-body techniques, respectively. The expanded uncertainty of the density, pressure, temperature, and viscosity measurements at the 95% confidence level with a coverage factor of k = 2 is estimated to be 0.15% to 0.30%, 0.05%, 0.02 K, and 1.5% to 2.0% (depending on temperature and pressure ranges), respectively. Themeasured densitieswere used to develop aTait-type equation of state for liquid n-heptane. Theoretically based Arrhenius-Andrade and Vogel- Tamman-Fulcher type equations with pressure-dependent coefficients were used to describe the temperature and pressure dependences of the measured viscosities for liquid n-heptane. The measured values of the density and viscosity were compared in detail with reported data and with the values calculated from a reference EOS and correlation models for the viscosity.
Compounds
#
Formula
Name
1
C7H16
heptane
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.