Published March 16, 1995
| public
Journal Article
Viscosity of Supercooled Sulfuric Acid Solutions
- Creators
- Williams, Leah R.
- Long, Forrest S.
Abstract
The physical properties of supercooled sulfuric acid solutions are of interest because sulfate aerosols play a role in heterogeneous stratospheric chemistry and possibly in the nucleation of polar stratospheric cloud particles. We report measurements of the viscosity of sulfuric acid solutions at temperatures between 200 and 300 K and for concentrations between 30 and 80 wt %. These results can be used to estimate diffusion constants and to calculate nucleation rates in sulfuric acid at low temperatures. The current measurements give higher viscosities at lower temperatures than previous approximations. This in turn decreases estimated diffusion constants and nucleation rates.
Additional Information
© 1995 American Chemical Society. Received: June 20, 1994; In Final Form: September 23, 1994. The authors acknowledge valuable discussions with D. L. Huestis, D. R. Crosley, and D. M. Golden. M. A. Tolbert suggested measuring the viscosity of a ternary solution. This research was supported by the NASA Upper Atmosphere Research Program, Contract NAS2-13479. F. S. Long was supported by the NSF Research Experience for Undergraduates Program.Additional details
- Eprint ID
- 86624
- Resolver ID
- CaltechAUTHORS:20180525-112156816
- NAS2-13479
- NASA
- NSF Undergraduate Research Program
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2018-05-25Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field