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| Titel |
Estimating fusion properties for functionalised acids |
| VerfasserIn |
S. Compernolle, K. Ceulemans, J.-F. Müller |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 11, no. 16 ; Nr. 11, no. 16 (2011-08-17), S.8385-8394 |
| Datensatznummer |
250010010
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| Publikation (Nr.) |
 copernicus.org/acp-11-8385-2011.pdf |
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| Zusammenfassung |
| Multicomponent organic aerosol (OA) is likely to be liquid, or partially
liquid. Hence, to describe the partitioning of these components, their
liquid vapour pressure is desired. Functionalised acids (e.g. diacids)
can be a significant part of OA. But often measurements are available
only for solid state vapour pressure, which can differ by orders of
magnitude from their liquid counterparts. To convert such a sublimation
pressure to a subcooled liquid vapour pressure, fusion properties
(two out of these three quantities: fusion enthalpy, fusion entropy,
fusion temperature) are required. Unfortunately, experimental knowledge
of fusion properties is sometimes missing in part or completely, hence
an estimation method is required. Several fusion data estimation methods
are tested here against experimental data of functionalised acids,
and a simple estimation method is developed, specifically for this
family of compounds, with a significantly smaller estimation error
than the literature methods. |
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