Diffusion and solubility of HCl in ice: Preliminary results

Details Diffusion and solubility of HCl in ice: Preliminary results Diffusion and solubility of HCl in ice: Preliminary results

Apr 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994georl..21..601d&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 21, no. 7, p. 601-604

Physics

13

Atmospheric Composition, Hydrogen Chlorides, Ice, Solubility, Species Diffusion, Stratosphere, Atmospheric Chemistry, Polar Regions, Single Crystals, Vapor Pressure

Scientific paper

The diffusion and solubility of HCl in ice have been measured between -5 and -15 C by exposing large single crystals of ice to low vapor pressures of HCl for several days. The solubility is found to be (1.0 +/- 0.15) x 10(exp -4) mol/l at -15 C under a 5.6 x 10(exp -4) Pa HCl partial pressure. The diffusion coefficient is of the order of 10(exp -12) sq cm/s at -8 C, but the determination of the value is affected by small angle boundaries, where HCl motion is much faster. Extrapolation of these results suggests that HCl is not incorporated into stratospheric ice crystals.

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