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Kinetics of the gas-phase reaction between ethyl and hydroxyl radicals

✍ Scribed by Kjell Fagerström; Anders Lund; Gharib Mahmoud; Jerzy T. Jodkowski; Emil Ratajczak

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
577 KB
Volume
208
Category
Article
ISSN
0009-2614

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✦ Synopsis

The kinetics of the reactions CsH,+OH( t M) +products ( + M ) ( I ) were studied at room temperature by pulse radiolysis of C2H6/H20/SFb mixtures. The ethyl radical decay was followed by monitoring the UV absorption signals at 205 nm. The experimentally determined value of k, is (7.1 f 1.0) x lOto M-t s-t. No pressure dependence ofk, in the pressure range 250-1000 mbar SFs was observed. The calculated k,, value for the temperature range 200-400 K is (7.7 f 1.0) X 10" M-' s-' for the addition reaction. The low-prcssurc limiting rate constant for the temperature. addition reaction should not bc lower than 10" M-l s-r at room

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