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|Title:||Atmospheric Chemistry of C3-C6 Cycloalkanecarbaldehydes|
|Authors:||D'ANNA B.; WISTHALER A.; ANDREASEN Oe.; VIIDANOJA Jyrki; JENSEN NIELS; NIELSEN C.; HANSEL A.; HJORTH JENS; STENSTROEM Y.|
|Citation:||GEOPHYSICAL RESEARCH ABSTRACTS vol. 7 p. 9978|
|Publisher:||European Geosciences Union|
|Type:||Articles in Journals|
|Abstract:||The rate coefficients for the gas phase reaction of NO3 and OH radicals with a series of Cycloalkanecarbaldehydes have been measured in purified air at 298 ± 2 K and 760 ± 10 Torr by the relative rate method using a static reactor equipped with long-path FT-IR detection. The values obtained for the OH radical reactions (in units of 10-11 cm3 molecule-1 s-1) were: cyclopropanecarbaldehyde, 2.13 ± 0.05; cyclobutanecarbaldehyde, 2.66 ± 0.06; cyclopentanecarbaldehyde, 3.27 ± 0.07; cyclohexanecarbaldehyde, 3.75 ± 0.05. The values obtained for the NO3 radical reactions, (in units of 10-14 cm3 molecule-1 s-1) were: cyclopropanecarbaldehyde, 0.61 ± 0.04; cyclobutanecarbaldehyde, 1.99 ± 0.06, cyclopentanecarbaldehyde 2.55 ± 0.10; cyclohexanecarbaldehyde, 3.19 ± 0.12. Furthermore, the reaction products with OH have been investigated using long-path FT-IR spectroscopy and proton-transfer-reaction mass spectrometry (PTR-MS). The identified products cover a wide spectrum of compounds including nitroperoxycarbonyl cycloalkanes, cycloketones, cycloalkyl nitrates, multifuntional compounds containing carbonyl, hydrosy and nitrooxy funtional groups, HCOOH, HCHO, CO and CO2.|
|JRC Institute:||Institute for Environment and Sustainability|
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