The interaction of HCl with water-ice at tropospheric temperatures

Details The interaction of HCl with water-ice at tropospheric temperatures The interaction of HCl with water-ice at tropospheric temperatures

Jul 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28.2827h&link_type=abstract

Geophysical Research Letters, Volume 28, Issue 14, p. 2827-2830

Other

6

Atmospheric Composition And Structure: Aerosols And Particles, Atmospheric Composition And Structure: Chemical Kinetic And Photochemical Properties

Scientific paper

The uptake of HCl on frozen film ice surfaces was studied as a function of temperature and HCl partial pressure (PHCl) in a flow reactor. The temperatures ranged from 205 to 230 K, and PHCl was (0.4-2.0)×10-6Torr. The initial uptake coefficients, γ, and the HCl surface coverage are reported. It was observed that the coverage varied from 3.0×1014molecules/cm2 at 205 K to 1.0×1014molecules/cm2 at 230 K. At 205 K the coverage showed no dependence on PHCl; the average surface coverage was ~(2.0+/-0.7)×1014molecules/cm2 at saturation. This value is consistent with other studies on similarly prepared ice films. It was found that γ~0.1 at 205 K, but decreased substantially when the temperature increased; however, γ was insensitive to PHCl.

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