Dynamical measurement of saturation vapor pressures below and above room temperature
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866915832579227648 |
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| author | Salimi, Mohsen Pedersen, Andreas B. Andersen, John E. V. Pedersen, Henrik B. Dantan, Aurélien |
| author_facet | Salimi, Mohsen Pedersen, Andreas B. Andersen, John E. V. Pedersen, Henrik B. Dantan, Aurélien |
| contents | We report on the implementation of a dynamical method for the determination -- in an extended temperature range around room temperature -- of the saturation vapor pressure and enthalpy of vaporization of low-volatility liquid substances. The method relies on isolating a \textit{precooled} substance in a heated chamber under static vacuum conditions and monitoring the chamber pressure as the sample slowly thermalizes to the chamber temperature. We apply the method to four reference substances -- diethyl phthalate, 1-decanol, 1-heptanol, and 1-hexanol -- and provide accurate data for their saturation vapor pressure and enthalpy of vaporization in the range from $-10$ to $35^\circ$C. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_10932 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Dynamical measurement of saturation vapor pressures below and above room temperature Salimi, Mohsen Pedersen, Andreas B. Andersen, John E. V. Pedersen, Henrik B. Dantan, Aurélien Chemical Physics We report on the implementation of a dynamical method for the determination -- in an extended temperature range around room temperature -- of the saturation vapor pressure and enthalpy of vaporization of low-volatility liquid substances. The method relies on isolating a \textit{precooled} substance in a heated chamber under static vacuum conditions and monitoring the chamber pressure as the sample slowly thermalizes to the chamber temperature. We apply the method to four reference substances -- diethyl phthalate, 1-decanol, 1-heptanol, and 1-hexanol -- and provide accurate data for their saturation vapor pressure and enthalpy of vaporization in the range from $-10$ to $35^\circ$C. |
| title | Dynamical measurement of saturation vapor pressures below and above room temperature |
| topic | Chemical Physics |
| url | https://arxiv.org/abs/2508.10932 |