CUP Faculty Research
Document Type
Article
Publication Date
10-8-2002
Abstract
Recent studies have shown that tropospheric aerosols composed of internal mixtures of organics with sulfates are quite common with the organic composing up to 50% of the particle mass. The influences of the organics on the chemical and physical properties of the aerosol are not known. In this paper, we report the solubility of a series of dicarboxylic acids in saturated ammonium sulfate solution as a function of temperature. We also report the deliquescence relative humidity (DRH) of the pure dicarboxylic acids and of mixtures of dicarboxylic acids with ammonium sulfate. For the systems studied, we find that the presence of water-soluble dicarboxylic acids caused deliquescence to occur at a lower relative humidity (RH) than pure ammonium sulfate. In contrast, the less soluble dicarboxylic acids had no measurable effect on the deliquescence relative humidity of ammonium sulfate.
Published In
Geophysical Research Letters
Recommended Citation
Brooks, Sarah D.; Wise, Matthew E.; Cushing, Melinda; and Tolbert, Margaret A., "Deliquescence Behavior of Organic/Ammonium Sulfate Aerosol" (2002). CUP Faculty Research. 165.
https://digitalcommons.csp.edu/cup_commons_faculty/165
Source
CU Commons -- Math and Science Department Faculty Research
Comments
Publication Information.
Brooks, S. D., M. E. Wise, M. Cushing, and M. A. Tolbert, Deliquescence behavior of organic/ammonium sulfate aerosol, Geophys. Res. Lett., 29(19), 1917, doi:10.1029/2002GL014733, 2002.
doi:10.1029/2002GL014733