| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 215745 | The Journal of Chemical Thermodynamics | 2013 | 8 Pages |
The densities of compressed liquid 1,2-alkanediols (C2, C3 and C4) were measured with a vibration tube densimeter over the temperature range from 278.15 K to 358.15 K and pressures up to 60 MPa, with an uncertainty of ±0.0012 g·cm−3. Densities were correlated with pressure and temperature by the TRIDEN 10-parameter equation. Values of the isothermal compressibility, isobaric thermal expansivity and internal pressure were calculated from the experimental results. Reported data are compared with predictions obtained using the PC-SAFT equation of state. The influence of the carbon-chain lengths over the obtained thermophysical properties was studied.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► The PρT behaviour of 1,2-alkanediols is studied. ► Vibrating tube densimeter was used up to 60 MPa and 358.15 K. ► TRIDEN 10-parameters equation was used to fit experimental data. ► Properties were analyzed as a function of pressure, temperature and chain length. ► PC-SAFT molecular-based equation of state was used for modelling purposes.
