Physics
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28.1961b&link_type=abstract
Geophysical Research Letters, Volume 28, Issue 10, p. 1961-1964
Physics
6
Atmospheric Composition And Structure: Aerosols And Particles, Atmospheric Composition And Structure: Chemical Kinetic And Photochemical Properties
Scientific paper
Gaseous HCl and HBr react with sulfuric acid at rates that depend strongly on acid concentration over a range of acidities typical of stratospheric aerosols. We monitor the competition between immediate desorption and H->D exchange after HCl and HBr thermalize upon collision with the surface of deuterated sulfuric acid: the exchange probabilities decrease from 0.7 to 0.1 (HCl) and 0.9 to 0.2 (HBr) as the acid concentration is increased from 55 to 70 wt% D2SO4 at 213 K. These measurements imply that HCl and HBr desorb faster than they dissociate at higher acidities, impeding the formation of Cl- and Br- in more acidic aerosols. Residence time measurements of HCl molecules that do enter the acid, however, indicate that HCl is more soluble than expected at high sulfuric acid concentrations.
Antman Melissa D.
Behr Peter
Morris John R.
Nathanson Gilbert M.
Ringeisen Bradley R.
No associations
LandOfFree
Reaction and desorption of HCl and HBr following collisions with supercooled sulfuric acid does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Reaction and desorption of HCl and HBr following collisions with supercooled sulfuric acid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reaction and desorption of HCl and HBr following collisions with supercooled sulfuric acid will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-934824