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Optical detection of NO3 and NO2 in “pure” HNO3 vapor, the liquid-phase decomposition of HNO3

✍ Scribed by J. N. Crowley; J. P. Burrows; G. K. Moortgat; G. Poulet; G. Le Bras

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
467 KB
Volume
25
Category
Article
ISSN
0538-8066

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✦ Synopsis

Flowing and static gas-phase samples of HNO3 in 0 2 and N2 were analyzed by long-path ultraviolethisible (TJV/VIS) spectroscopy to reveal the presence of both NO2 and NO3, the concentrations of which were calculated using differential absorption cross sections. NO2 is produced predominantly by the heterogeneous decomposition of HNO3, whereas NO3 is generated in the gas phase by the thermal decomposition of NzO5, a product of the selfdisproportionation of liquid HNO3.

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