The uptake of N{sub 2}O{sub 5} onto small sulfuric acid particles
- Aeronomy Lab., Boulder, CO (United States)
The probabilities for N{sub 2}O{sub 5} loss onto sulfuric acid aerosol (60-80 wt% H{sub 2}SO{sub 4}, 0.1-0.2 {mu}m radius, 230-300 K) were measured using a laminar flow reactor coupled to a sulfuric acid aerosol source and a chemical ionization mass spectrometer. The aerosol morphology was extracted from measurements of the aerosol extinction of ultraviolet light (200-370nm) by using Mie theory. The reaction probabilities, {gamma}, are large (0.06-0.12) and are comparable to probabilities measured previously under similar conditions on bulk sulfuric acid surfaces and small aerosol. These measurements confirm that the overall reaction of N{sub 2}O{sub 5} with H{sub 2}O in/on 60-80% sulfuric acid is fast and the uptake is due to loss very close to the liquid surface. 15 refs., 3 figs., 1 tab.
- OSTI ID:
- 53980
- Journal Information:
- Geophysical Research Letters, Vol. 21, Issue 22; Other Information: PBD: 1 Nov 1994
- Country of Publication:
- United States
- Language:
- English
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