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A shock tube study of H + HNCO → NH2 + CO

✍ Scribed by John D. Mertens; Katharina Kohse-Höinghaus; Ronald K. Hanson; Craig T. Bowman

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
679 KB
Volume
23
Category
Article
ISSN
0538-8066

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The reaction of atomic hydrogen with isocyanic acid (HNCO) to produce the amidogen radical (NH~2~) and carbon monoxide,
equation image
has been studied in shock‐heated mixtures of HNCO dilute in argon. Time‐histories of the ground‐state NH~2~ radical were measured behind reflected shock waves using cw, narrowlinewidth laser absorption at 597 nm, and HNCO time‐histories were measured using infrared emission from the fundamental v~2~‐band of HNCO near 5 μm. The second‐order rate coefficient of reaction (2(a)) was determined to be:
cm^3^ mol^−1^ s^−1^, where f and F define the lower and upper uncertainty limits, respectively.

An upper limit on the rate coefficient of
equation image
was determined to be:

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