Rate coefficients for OH reactions with the 2-5 carbon aliphatic aldehydes have been measured under pseudo first-order conditions in OH. OH was generated by flash photolysis of H 2 0 a t wavelengths greater than 165 nm and its concentration monitored using time-resolved resonance fluorescence spectr
Kinetics and products of the reaction of hydroxyl radical with molecular bromine
โ Scribed by G. Poulet; G. Laverdet; G. Le Bras
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 331 KB
- Volume
- 94
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
โฆ Synopsis
Br2 reaction has been mranued at room temperature in two discharge-tlo\ ) stems u~ng whrr electron p~mmssneuc rcsommce or laser-induced fluorescence for OH analysis The result is R = (4 12 0.7) x 10-11 cm3 molrcule-1 s-' _ The measurement of the Br J ield produced in this reaction indicates that OH reacts w irh Br2 tollo\tng the unique channel OH + Br-, -Br + HOBr. This rextion could be a suitable source of HOBr for laborator> \pectroccoptc \tudtec
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The reactions of HI with OH and NO3 have been studied in discharge-flow reactors coupled to EPR and mass spectrometry for analysis, The rate constants for the reactions HI+OH+H20 t I (1) and HI t NO3 +HNO, t I (2) were determined al 298 K: k,=(3.3+0.2)xlO-" and kz = (2.5f0.8) X 10 --IS cm3 molecule-
Absolute rate coefficients for the reactions of the hydroxyl radical with ethane (kl, 297-800 K) and propane (kz, 297-690 K) were measured using the flash photolysis-resonance fluorescence technique. The rate coefficient data were fit by the following temperature-dependent expressions, in units of c