Phase equilibria of H2SO4, HNO3, and HCl hydrates and the composition of polar stratospheric clouds
- 20 January 1995
- journal article
- Published by American Geophysical Union (AGU) in Journal of Geophysical Research: Atmospheres
- Vol. 100 (D1) , 1389-1396
- https://doi.org/10.1029/94jd02745
Abstract
Thermodynamic properties and phase equilibria behavior for the hydrates and coexisting pairs of hydrates of common acids which exist in the stratosphere are assembled from new laboratory measurements and standard literature data. The analysis focuses upon solid‐vapor and solid‐solid‐vapor equilibria at temperatures around 200 K and includes new calorimetric and vapor pressure data. Calculated partial pressures versus 1/T slopes for the hydrates and coexisting hydrates agree well with experimental data where available.Keywords
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