HCl vapour pressures and reaction probabilities for ClONO2+ HCl on liquid H2SO4–HNO3–HCl–H2O solutions

Title:
HCl vapour pressures and reaction probabilities for ClONO2+ HCl on liquid H2SO4–HNO3–HCl–H2O solutions
Authors:
Elrod, Matthew J.; Koch, R. E.; Kim, J. E.; Molina, Mario J.
Abstract:
Henry's Law solubility constants for HCl have been measured for liquid H2SO4–HNO3–HCl–H2O solutions; the results are in good agreement with predictions from published semiempirical models. The ClONO2+ HCl reaction on the surfaces of such solutions with compositions simulating those of stratospheric aerosols has been investigated; as the composition changes following the temperature drop characteristic of the high-latitude stratosphere the reaction probability γ increases rapidly. Furthermore, the γ values remain essentially unchanged when HNO3 uptake is neglected; the controlling factor appears to be the solubility of HCl. These results corroborate our earlier suggestion that supercooled liquid sulfate aerosols promote chlorine activation at low temperatures as efficiently as solid polar stratospheric cloud particles.
Citation:
Elrod, M.J., R.E. Koch, J.E. Kim, and M.J. Molina. 1995. "HCl Vapour Pressures and Reaction Probabilities for ClONO2+ HCl on liquid H2SO4–HNO3–HCl–H2O solutions." Discussions of the Faraday Society 100: 269-278.
Publisher:
Royal Society of Chemistry
DATE ISSUED:
1995
Department:
Chemistry
Type:
article
PUBLISHED VERSION:
10.1039/fd9950000269
PERMANENT LINK:
http://hdl.handle.net/11282/309803

Full metadata record

DC FieldValue Language
dc.contributor.authorElrod, Matthew J.en_US
dc.contributor.authorKoch, R. E.en_US
dc.contributor.authorKim, J. E.en_US
dc.contributor.authorMolina, Mario J.en_US
dc.date.accessioned2013-12-23T16:18:13Zen
dc.date.available2013-12-23T16:18:13Zen
dc.date.issued1995en
dc.identifier.citationElrod, M.J., R.E. Koch, J.E. Kim, and M.J. Molina. 1995. "HCl Vapour Pressures and Reaction Probabilities for ClONO2+ HCl on liquid H2SO4–HNO3–HCl–H2O solutions." Discussions of the Faraday Society 100: 269-278.en_US
dc.identifier.issn1359-6640en_US
dc.identifier.urihttp://hdl.handle.net/11282/309803en
dc.description.abstractHenry's Law solubility constants for HCl have been measured for liquid H2SO4–HNO3–HCl–H2O solutions; the results are in good agreement with predictions from published semiempirical models. The ClONO2+ HCl reaction on the surfaces of such solutions with compositions simulating those of stratospheric aerosols has been investigated; as the composition changes following the temperature drop characteristic of the high-latitude stratosphere the reaction probability γ increases rapidly. Furthermore, the γ values remain essentially unchanged when HNO3 uptake is neglected; the controlling factor appears to be the solubility of HCl. These results corroborate our earlier suggestion that supercooled liquid sulfate aerosols promote chlorine activation at low temperatures as efficiently as solid polar stratospheric cloud particles.en_US
dc.language.isoen_USen_US
dc.publisherRoyal Society of Chemistryen_US
dc.identifier.doi10.1039/fd9950000269en
dc.subject.departmentChemistryen_US
dc.titleHCl vapour pressures and reaction probabilities for ClONO2+ HCl on liquid H2SO4–HNO3–HCl–H2O solutionsen_US
dc.typearticleen_US
dc.identifier.journalDiscussions of the Faraday Societyen_US
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