The reaction probability of N2O5 with sulphuric acid aerosols at stratospheric temperatures and compositions
| dc.contributor.author | Fried, A. | |
| dc.contributor.author | Henry, B.E. | |
| dc.contributor.author | Calvert, J.G. | |
| dc.contributor.author | Mozurkewich, M. | |
| dc.date.accessioned | 2010-06-21T17:07:01Z | |
| dc.date.available | 2010-06-21T17:07:01Z | |
| dc.date.issued | 1994 | |
| dc.description.abstract | We have measured the rate of reaction of N2O5 with H2O on monodisperse, submicrometer H2SO4 particles in a low‐temperature flow reactor. Measurements were carried out at temperatures between 225 K and 293 K on aerosol particles with sizes and compositions comparable to those found in the stratosphere. At 273 K, the reaction probability was found to be 0.103 ± 0.006, independent of H2SO4 composition from 64 to 81 wt %. At 230 K, the reaction probability increased from 0.077 for compositions near 60% H2S04 to 0.146 for compositions near 70% H2SO4. Intermediate conditions gave intermediate results except for low reaction probabilities of about 0.045 at 260 K on aerosols with about 78% H2SO4. The reaction probability did not depend on particle size. These results imply that the reaction occurs essentially at the surface of the particle. A simple model for this type of reaction that reproduces the general trends observed is presented. The presence of formaldehyde did not affect the reaction rate. | en |
| dc.identifier.uri | http://hdl.handle.net/10315/4252 | |
| dc.language.iso | en | en |
| dc.publisher | AGU | en |
| dc.rights.journal | http://www.agu.org/journals/jd/ | en |
| dc.title | The reaction probability of N2O5 with sulphuric acid aerosols at stratospheric temperatures and compositions | en |
| dc.type | Article | en |