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dc.contributor.author
Antiñolo, M.
dc.contributor.author
Ocaña, A.J.
dc.contributor.author
Aranguren Abrate, Juan Pablo
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dc.contributor.author
Lane, Silvia Irene
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dc.contributor.author
Albaladejo, J.
dc.contributor.author
Jiménez, E.
dc.date.available
2018-11-15T15:40:45Z
dc.date.issued
2017-12
dc.identifier.citation
Antiñolo, M.; Ocaña, A.J.; Aranguren Abrate, Juan Pablo; Lane, Silvia Irene; Albaladejo, J.; et al.; Atmospheric degradation of 2-chloroethyl vinyl ether, allyl ether and allyl ethyl ether: Kinetics with OH radicals and UV photochemistry; Pergamon-Elsevier Science Ltd; Chemosphere; 181; 12-2017; 232-240
dc.identifier.issn
0045-6535
dc.identifier.uri
http://hdl.handle.net/11336/64539
dc.description.abstract
Unsaturated ethers are oxygenated volatile organic compounds (OVOCs) emitted by anthropogenic sources. Potential removal processes in the troposphere are initiated by hydroxyl (OH) radicals and photochemistry. In this work, we report for the first time the rate coefficients of the gas-phase reaction with OH radicals (kOH) of 2-chloroethyl vinyl ether (2ClEVE), allyl ether (AE), and allyl ethyl ether (AEE) as a function of temperature in the 263–358 K range, measured by the pulsed laser photolysis–laser induced fluorescence technique. No pressure dependence of kOH was observed in the 50–500 Torr range in He as bath gas, while a slightly negative T-dependence was observed. The temperature dependent expressions for the rate coefficients determined in this work are: kOH,2ClEVE(T)=(9.0±2.0)×10−12exp(478±72T)cm3molecule−1s−1, kOH,AE(T)=(1.3±0.4)×10−11exp(442±91T)cm3molecule−1s−1, kOH,AEE(T)=(5.8±1.3)×10−12exp(563±62T)cm3molecule−1s−1, The estimated atmospheric lifetimes (τOH) assuming kOH at 288 K were 3, 2, and 4 h for 2ClEVE, AE and AEE, respectively. The kinetic results are discussed in terms of the chemical structure of the unsaturated ethers by comparison with similar compounds. We also report ultraviolet (UV) and infrared (IR) absorption cross sections (σλ and σ(ν˜), respectively). We estimate the photolysis rate coefficients in the solar UV actinic region to be less than 10−7 s−1, implying that these compounds are not removed from the atmosphere by this process. In addition, from σ(ν˜) and τOH, the global warming potential of each unsaturated ether was calculated to be almost zero. A discussion on the atmospheric implications of the titled compounds is presented.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Pergamon-Elsevier Science Ltd
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Absorption Cross Sections
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Hydroxyl Radicals
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Kinetics
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Tropospheric Chemistry
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Unsaturated Ethers
dc.subject.classification
Otras Ciencias Químicas
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dc.subject.classification
Ciencias Químicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Atmospheric degradation of 2-chloroethyl vinyl ether, allyl ether and allyl ethyl ether: Kinetics with OH radicals and UV photochemistry
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-10-22T18:39:13Z
dc.journal.volume
181
dc.journal.pagination
232-240
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Nueva York
dc.description.fil
Fil: Antiñolo, M.. Universidad de Castilla-La Mancha; España
dc.description.fil
Fil: Ocaña, A.J.. Universidad de Castilla-La Mancha; España
dc.description.fil
Fil: Aranguren Abrate, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
dc.description.fil
Fil: Lane, Silvia Irene. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
dc.description.fil
Fil: Albaladejo, J.. Universidad de Castilla-La Mancha; España
dc.description.fil
Fil: Jiménez, E.. Universidad de Castilla-La Mancha; España
dc.journal.title
Chemosphere
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1016/j.chemosphere.2017.04.053
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0045653517305891
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