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Title: Solubility of HBr in sulfuric acid at stratospheric temperatures

Abstract

The solubility of HBr in 54 to 72 wt % sulfuric acid at low temperatures (200 to 240 K) was measured using two different experimental techniques. In the first, the time dependence of the uptake coefficient of HBr was measured in a Knudsen cell reactor and analyzed to give the effective Henry`s law coefficient. In the second, equilibrium vapor pressures of HBr (gas) over solutions containing known concentrations of HBr (dissolved) were measured. The two techniques were in good agreement. Typical values of the effective Henry`s law coefficient at 220 K were 1.5 x 10{sup 7} M/atm for 54 wt %, 2.2 x 10{sup 6} M/atm for 60 wt %, 1.5 x 10{sup 5} M/atm for 66 wt %, and 8.5 x 10{sup 3} M/atm for 72 wt % sulfuric acid. The measured solubilities combined with the stratospheric gas phase concentration of HBr indicate that very little HBr will be dissolved in stratospheric sulfate aerosol particles. 28 refs., 4 figs., 2 tabs.

Authors:
; ;  [1]
  1. SRI International, Menlo Park, CA (United States)
Publication Date:
OSTI Identifier:
166243
Resource Type:
Journal Article
Journal Name:
Journal of Geophysical Research
Additional Journal Information:
Journal Volume: 100; Journal Issue: D4; Other Information: PBD: 20 Apr 1995
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; HYDROBROMIC ACID; SOLUBILITY; SULFURIC ACID; AQUEOUS SOLUTIONS; TEMPERATURE RANGE 0065-0273 K

Citation Formats

Williams, L R, Golden, D M, and Huestis, D L. Solubility of HBr in sulfuric acid at stratospheric temperatures. United States: N. p., 1995. Web. doi:10.1029/95JD00218.
Williams, L R, Golden, D M, & Huestis, D L. Solubility of HBr in sulfuric acid at stratospheric temperatures. United States. https://doi.org/10.1029/95JD00218
Williams, L R, Golden, D M, and Huestis, D L. 1995. "Solubility of HBr in sulfuric acid at stratospheric temperatures". United States. https://doi.org/10.1029/95JD00218.
@article{osti_166243,
title = {Solubility of HBr in sulfuric acid at stratospheric temperatures},
author = {Williams, L R and Golden, D M and Huestis, D L},
abstractNote = {The solubility of HBr in 54 to 72 wt % sulfuric acid at low temperatures (200 to 240 K) was measured using two different experimental techniques. In the first, the time dependence of the uptake coefficient of HBr was measured in a Knudsen cell reactor and analyzed to give the effective Henry`s law coefficient. In the second, equilibrium vapor pressures of HBr (gas) over solutions containing known concentrations of HBr (dissolved) were measured. The two techniques were in good agreement. Typical values of the effective Henry`s law coefficient at 220 K were 1.5 x 10{sup 7} M/atm for 54 wt %, 2.2 x 10{sup 6} M/atm for 60 wt %, 1.5 x 10{sup 5} M/atm for 66 wt %, and 8.5 x 10{sup 3} M/atm for 72 wt % sulfuric acid. The measured solubilities combined with the stratospheric gas phase concentration of HBr indicate that very little HBr will be dissolved in stratospheric sulfate aerosol particles. 28 refs., 4 figs., 2 tabs.},
doi = {10.1029/95JD00218},
url = {https://www.osti.gov/biblio/166243}, journal = {Journal of Geophysical Research},
number = D4,
volume = 100,
place = {United States},
year = {Thu Apr 20 00:00:00 EDT 1995},
month = {Thu Apr 20 00:00:00 EDT 1995}
}