Bibliographic Citation
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Title | Kinetics of the gas-phase reactions of OH and NO sub 3 radicals with 2-carene, 1,8-cineole, p-cymene, and terpinolene |
Creator/Author | Corchnoy, S.B. ; Atkinson, R. (Univ. of California, Riverside (USA)) |
Publication Date | 1990 Oct 01 |
OSTI Identifier | OSTI ID: 5468627 |
Other Number(s) | ISSN0013-936X; CODEN: ESTHA |
Resource Type | Journal Article |
Resource Relation | Environmental Science and Technology ; Vol/Issue: 24:10 |
Subject | 540120 -- Environment, Atmospheric-- Chemicals Monitoring & Transport-- (1990-) ;010900 -- Coal, Lignite, & Peat-- Environmental Aspects; HYDROXYL RADICALS-- REACTION KINETICS;NITROGEN OXIDES-- REACTION KINETICS;TERPENES-- REACTION KINETICS; ATMOSPHERIC CHEMISTRY;CYMENE;MEDIUM TEMPERATURE;OZONE;TROPOSPHERE |
Related Subject | AROMATICS;CHALCOGENIDES;CHEMISTRY;EARTH ATMOSPHERE;HYDROCARBONS;KINETICS;NITROGEN COMPOUNDS;ORGANIC COMPOUNDS;OXIDES;OXYGEN COMPOUNDS;RADICALS |
Description/Abstract | Rate constants for the gas-phase reactions of OH and NO{sub 3} radicals with the biogenically emitted monoterpenes 2-carene and terpinolene and the related compounds 1,8-cineole and p-cymene have been determined at 295 {plus minus} 2 K and atmospheric pressure by using relative rate methods.^The rate constants obtained were (cm{sup 3} molecule{sup {minus}1} s{sup {minus}1}) as follows.^For reaction with the OH radical: 2-carene, 7.95 {times} 10{sup {minus}11}; 1,8-cineole, 1.11 {times} 10{sup {minus}11}; p-cymene, 1.51 {times} 10{sup {minus}11}; terpinolene, 2.25 {times} 10{sup {minus}10}.^For reaction with the NO{sub 3} radical: 2-carene, 1.94 {times} 10{sup {minus}11}; 1,8-cineole, 1.7 {times} 10{sup {minus}16}; p-cymene, 9.9 {times} 10{sup {minus}16}; terpinolene, 9.62 {times} 10{sup {minus}11}.^Combined with the rate data for the corresponding reactions of these compounds with O{sub 3} and the ambient tropospheric concentrations of OH and NO{sub 3} radicals and O{sub 3}, these data show that the OH and NO{sub 3} radical and O{sub 3} reactions must all be considered as loss processes for 2-carene and terpinolene, with calculated lifetimes of 2-carene and terpinolene of 2 h or less. |
Country of Publication | United States |
Language | English |
Format | Pages: 1497-1502 |
System Entry Date | 2001 May 13 |
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