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The gas-phase reaction of hydrazine and ozone: A nonphotolytic source of OH radicals for measurement of relative OH radical rate constants

✍ Scribed by Ernesto C. Tuazon; William P. L. Carter; Roger Atkinson; James N. Pitts Jr.

Publisher: John Wiley and Sons
Year: 1983
Tongue: English
Weight: 533 KB
Volume: 15
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550150704

No coin nor oath required. For personal study only.

✦ Synopsis

The homogeneous gas-phase reaction of NzH4 with O3 in air at atmospheric pressure has been used to generate OH radicals in the dark, allowing the determination of relative OH radical rate constants for compounds which photolyze rapidly. This technique was first validated by determining the OH radical rate constant ratios for n-butanelcyclohexane and methanol/dimethyl ether, both of which are in excellent agreement with the literature values. The rate constant for the reaction of OH radicals with methyl nitrite at 300 f 3 K was then determined relative to those for the reaction of OH radicals with n-hexane and dimethyl ether.

The resulting rate constant of 1.8 X cm3/molecule-s is about seven times lower than those of previous measurements which employed a different nonphotolytic relative rate method.

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