A relative rate approach has , been used to measure the reactivity of CF,O radicals towards ozone. Using k(CFaO+NOa)=2,7x IO-" cm' molecule-' s-' as the referencereactioqanupperlimit ofk(CF,O+Os) 63~ 10-'4cmSmolecule-' was determined at 295 K and 700 Torr of O2 diluent. The implications for the atmo
A kinetic study of the CF3CFH recombination and O2 addition reactions
β Scribed by M. Matti Maricq; Joseph J. Szente; E.W. Kaiser
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 631 KB
- Volume
- 197
- Category
- Article
- ISSN
- 0009-2614
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π SIMILAR VOLUMES
## Abstract The relative rate technique has been used to determine the rate constants of the reactions of OH radicals with CF~3~CClο£ΎCCl~2~ (__k__~1~), CF~3~CClο£ΎCClCF~3~ (__k__~2~) and CF~3~CFο£ΎCFCF~3~ (__k__~3~). Experiments were carried out at (298Β±2) K and atmospheric pressure using ultrapure nitr
The rare cocificwn ior the rcact~on oiCF,02 with NO has been mcasurcd at 295 R m hcbum usins 3 ilow tube nmplcd by 2 rnxs spcctromurcr The KIIUC obrlmed ior this raw coeiircicnt was (17 8 f 3 6) x IO-'\* crK3 s-t and iound to bc indcpcndcnr of [Hc] over the range (6 3-16 8) x lOI cmm3. Tbls value is
Flash photolysis/time-resolved UV absorption measurements of the rate constants for the title reactions are reported over the temperature range 2 lo-253 K. The photolysis of F2/CF,H/03/02/N, gas mixtures reveals that the formation of CF302 and CF,O radicals has no measurable effect on the ozone conc
The kinetics of the reaction of CF,CFHO, radicals with NO was studied by flash photolysis-time-resolved mass spectrometry. From the kinetic growth rate of NO: molecular ions the rate coefficient of the reaction CF,CFHO, + NO -+ CF,CFHO + NO, was determined to be k = (1.31 &-0.30) X 10-l' cm3 molecul
## Abstract The flash photolysis resonance fluorescence technique has been utilized to determine the rate constants for three reactions involving the hydroxyl radical [OH(^2^β )] and three halogenated C~2~ alkanes. The nominal temperature range covered was 250β375 K. The compounds studied and the re