The vapor pressures of n-heptane have been measured using comparative ebulliometry with water as the reference substance. The measurements cover the temperature and pressure range (372 K and 102 kPa) to (537 K and 2621 kPa) and were correlated by a Wagner-type equation with a standard deviation of 16 Pa in the vapor pressure. The critical pressure was treated as an adjustable parameter, and the value pc ) 2734 kPa was obtained using a selected critical temperature, Tc ) 540.13 K. The calculated normal boiling temperature is Tb ) 371.552 K, and an extrapolation to the triple point pressure at Ttp ) 182.59 K predicts a pressure, ptp ) 0.178 Pa.
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.