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Rate constants for reactions of hydroxyl radicals with nitromethane and methyl nitrite vapours at 292 K

✍ Scribed by I.M. Campbell; K. Goodman

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
246 KB
Volume
36
Category
Article
ISSN
0009-2614

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✦ Synopsis

The variations of yields of CO* from the gas phase Hz02 + NO* + CO chain reaction system with added nitromcthane or methyl nitrite have given rate constants for reactions of OH radicals with these substrates. At 292 I; these are (5.5 + 0.6) X IO8 and (g.0 & 1.1) x !08 dm3 rnc11-~ s-l respectively.

It is now generally accepted that reactions of hydroxyl (OH) radicals play a central role in tropospheric chemistry, particularly under photochemical smog forming conditions

[ I] _ However the rate constants for the reactions of OH with many of the molecular species present under these conditions are unknown. For example, there is virtually no kinetic data for the reactions mv~olting nitrogen-containing organic molecules. The limitation

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