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Diffusion and solubility of HCl in ice: preliminary results
Author(s) -
Dominé Florent,
Thibert Emmanuel,
Van Landeghem Frank,
Silvente Eric,
Wag Patrick
Publication year - 1994
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/94gl00512
Subject(s) - solubility , diffusion , extrapolation , vapor pressure , analytical chemistry (journal) , materials science , partial pressure , chemistry , mineralogy , thermodynamics , geology , chromatography , physics , organic chemistry , oxygen , mathematical analysis , mathematics
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) × 10 −4 mol/1 at −15°C under a 5.6×10 −4 Pa HCl partial pressure. The diffusion coefficient is of the order of 10 −12 cm 2 s −1 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.