Reactive uptake coefficients for heterogeneous reaction of N2O5 with submicron aerosols of NaCl and natural sea salt
Item
Title (Dublin Core)
Reactive uptake coefficients for heterogeneous reaction of N2O5 with submicron aerosols of NaCl and natural sea salt
Description (Dublin Core)
The kinetics of uptake of gaseous N<sub>2</sub>O<sub>5</sub> on submicron aerosols containing NaCl and natural sea salt have been investigated in a flow reactor as a function of relative humidity (<i>RH</i>) in the range 30-80% at 295±2K and a total pressure of 1bar. The measured uptake coefficients, γ, were larger on the aerosols containing sea salt compared to those of pure NaCl, and in both cases increased with increasing <i>RH</i>. These observations are explained in terms of the variation in the size of the salt droplets, which leads to a limitation in the uptake rate into small particles. After correction for this effect the uptake coefficients are independent of relative humidity, and agree with those measured previously on larger droplets. A value of γ=0.025 is recommended for the reactive uptake coefficient for N<sub>2</sub>O<sub>5</sub> on deliquesced sea salt droplets at 298K and <i>RH</i>>40%.
Creator (Dublin Core)
Stewart, D. J.
Griffiths, P. T.
Cox, R. A.
Date (Dublin Core)
2018-06-28
Type (Dublin Core)
Text
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
10.5194/acp-4-1381-2004
https://acp.copernicus.org/articles/4/1381/2004/
Source (Dublin Core)
eISSN: 1680-7324
Language (Dublin Core)
eng
