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Persistent URL http://purl.org/net/epubs/work/30364
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Record Id 30364
Title First detection of molecular hydrate complexes in sulfuric acid
Abstract Two un-ionised molecular hydrate complexes, previously observed by Fourier-transform spectroscopy in flat films of vapour deposited sulfuric acid, have beenidentified directly in aerosols nucleated from SO3 and H2O in a 75 dm3 coolable spectroscopic cell. Aerosols of a 1 : 1 complex H2SO4 . H2O have been generated at 195 K and have also been formed in cooled liquid sulfuric acid aerosols. A second polymeric metastable hydrate of the type (H2SO4 . 2H2O)n has been identified as the initial material formed during the nucleation process of sulfuric acid aerosol at 195 K. These metastable species are likely to play an important role in the formation of sulfuric acid aerosols at the low temperatures found in the upper troposphere and the lower stratosphere.
Organisation CCLRC , SSTD
Keywords Chemistry , Natural environment
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Language English (EN)
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Journal Article Phys Chem Chem Phys 5 (2003): 4108-4113. doi:10.1039/b306620g 2003