Pressure and temperature dependence of the OH radical reaction with acetylene
β Scribed by R.A. Perry; David Williamson
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 368 KB
- Volume
- 93
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Absolulc KIIC constants for the rcac11on ofOH WIII acctylcnc wcrc dctcrmmcd at 297 and 419 K for thu 101.d pru~rc\ ol'20-403 Torr usmg a flash photolysa-rcsonancc lluorcsccnre tcchmquc The rate coclTic~cnt k was found to bc pwrurc dcpcndcnt below 200 Torr at both 297 and 429 K, but \a m the high-prcssurc hmellc rctxm abolc a tool prcww of X0 TOW. TIE best fit to the data over the prcssurc and tcmpcrnrurc r,mgc studred wasgwrn by lhc c\pressron k(T,~)b, = I 18 x lo-" C\P[(-327 2 400)/fU~/(3O/p + I). ~11crc /J IS the prcssurc an Torr
π SIMILAR VOLUMES
The r&e constant for removal of OH by HCN in an argon or helium carrier decreases with da-reasing pressure below 15 torr (2 kPa), which shows that a stzbiked HCNOH intermediate invofved in the reaction.
The temperature dependence of the rate coefficients for the OH radical reactions with toluene, benzene, o-cresol, m-cresol, p-cresol, phenol, and benzaldehyde were measured by the competitive technique under simulated atmospheric conditions over the temperature range 258-373 K. The relative rate coe
The kinetics of the reaction CHs + OH ( +M ) -CH,OH( + M ) was studied in the temperature range 283-373 K and in the pressure range 85-1000 mbar SF, by pulse radiolysis combined with UV absorption spectroscopy. The methyl and hydroxyl radical decays were followed by monitoring the transient UV absor