Solid state and sub-cooled liquid vapour pressures of cyclic aliphatic dicarboxylic acids
| Autor: | A. M. Booth, W. J. Montague, M. H. Barley, D. O. Topping, G. McFiggans, A. Garforth, C. J. Percival |
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| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | Atmospheric Chemistry and Physics, Vol 11, Iss 2, Pp 655-665 (2011) |
| Druh dokumentu: | article |
| ISSN: | 1680-7316 1680-7324 |
| DOI: | 10.5194/acp-11-655-2011 |
| Popis: | Knudsen Effusion Mass Spectrometry (KEMS) has been used to measure for the first time the solid state vapour pressures of a series of aliphatic cyclic dicarboxylic acids with increasing ring size. Additionally the atmospherically important compounds; cis-pinonic acid and levoglucosan were also measured. Differential Scanning Calorimetry (DSC) was used to measure melting points, enthalpies and entropies of fusion, which were used to determine sub-cooled liquid vapour pressures for the compounds. The sub-cooled liquid vapour pressure of straight chain, branched and cyclic dicarboxylic acids was compared to a selection of estimation methods. |
| Databáze: | Directory of Open Access Journals |
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