This paper describes a simple high-pressure mercury-free microcalorimetric technique that enables the compression of a fluid from 0.1 to 30 MPa. Thermal expansivities of several compounds were calculated (n-hexane, cyclohexane, heptane, and toluene) with the pressure scanning transitiometry method at 30 C 1 0.03 C as a function of pressure and compared to the data found in the literature. The results are quite close to the literature values (4.2% at the very worst), and the uncertainty has been evaluated at 2%. A Tait equation, fitted from experimental density data, was also used to test the results of this work. The difference is between -5.9% and 3.2%.
Compounds
#
Formula
Name
1
C6H14
hexane
2
C7H16
heptane
3
C7H8
toluene
4
C6H12
cyclohexane
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.