Laboratory Study of ClNO:  Hydrolysis

Nitrosyl chloride, ClNO, may be released to the atmosphere when NO2 interacts with dry or liquid sea salt aerosol. An upper limit for the second-order gas phase hydrolysis rate coefficient of ClNO was determined to (7.4 ± 2.4) × 10-22 cm3 molecule-1 s-1 at 296 K. This implies that hydrolysis is slow...

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Bibliographic Details
Published inEnvironmental science & technology Vol. 30; no. 6; pp. 2008 - 2013
Main Authors Karlsson, Rune S, LjungstrÖm, Evert B
Format Journal Article
LanguageEnglish
Published American Chemical Society 23.05.1996
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Summary:Nitrosyl chloride, ClNO, may be released to the atmosphere when NO2 interacts with dry or liquid sea salt aerosol. An upper limit for the second-order gas phase hydrolysis rate coefficient of ClNO was determined to (7.4 ± 2.4) × 10-22 cm3 molecule-1 s-1 at 296 K. This implies that hydrolysis is slow, compared to photolysis, as a loss process for ClNO in the troposphere. Furthermore, this work shows that heterogeneous decomposition of ClNO takes place on glass surfaces. This reaction is zero-order in ClNO at concentrations above 2 × 1014 molecule cm-3 and has a complex water vapor dependence.
Bibliography:istex:E4077D4C19673AED33CBC0B27B860DF206F44F98
Abstract published in Advance ACS Abstracts, April 15, 1996.
ark:/67375/TPS-SFTML4M4-M
ISSN:0013-936X
1520-5851
DOI:10.1021/es950801f