## Abstract Rate constants for the gasβphase reactions of the hydroxyl radical with the biogenic hydrocarbons, Ξ²βmyrcene and isoprene, were measured using the relative rate technique over the temperature range 313β413 K and at βΌ1 atm total pressure. OH was produced by the photolysis of H~2~O~2~, an
Absolute rate constants for the gas-phase ozonolysis of isoprene and methylbutenol
β Scribed by N. Klawatsch-Carrasco; J. F. Doussin; P. Carlier
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 80 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0538-8066
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β¦ Synopsis
Abstract
The reactions of the biogenic organic compounds isoprene and 2βmethylβ3βbutenβ2βol (MBO) with ozone have been investigated under controlled conditions for pressure (atmospheric pressure) and temperature (293 Β± 2 K), using FTIR spectrometry. CO was added to scavenge hydroxyl radical formation during the ozonolysis experiments. Reaction rate constants were determined by absolute rate technique, by measuring both ozone and the organic compound concentrations. The measured values were k~1~ = (1.19 Β± 0.09) Γ 10^β17^ cm^3^ molecule^β1^ s^β1^ for the reaction between ozone and isoprene and k~2~ = (8.3 Β± 1.0) Γ 10~β18~ cm^3^ molecule^β1^ s^β1^ for the reaction between ozone and MBO. Β© 2004 Wiley Periodicals, Inc. Int J Chem Kinet 36: 152β156 2004
π SIMILAR VOLUMES
## Abstract The relativeβrate method has been used to determine the rate coefficients for the reactions of OH radicals with three C~5~ biogenic alcohols, 2βmethylβ3βbutenβ2βol (__k__~1~), 3βmethylβ3βbutenβ1βol (__k__~2~), and 3βmethylβ2βbutenβ1βol (__k__~3~), in the gas phase. OH radicals were prod
## Abstract Rate coefficients for the gasβphase reaction of isoprene with nitrate radicals and with nitrogen dioxide were determined. A Teflon collapsible chamber with solid phase micro extraction (SPME) for sampling and gas chromatography with flame ionization detection (GC/FID) and a glass reacto
## Receiwd 16 Ma> 1979 MoIecuhr modulation spectrometry has been employed to mesure the rate constants for the reactions ofCHxO2 with HOz. NO2 and X0. A negnthe tcmpcraturc dependence is reported for the rextion nirh HO\_r. Product spectra are giwn for the reactions with lIOt and NO?\_
The absolute rate constants for the gas-phase H-atom abstraction by hydroxyl radicals from cyclohexane and ethane have been determined at room temperature. OH radicals were produced by pulse radiolysis of an H,O-Ar mixture, and the decay of OH was followed by monitoring the transient light absorpti