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Infrared spectroscopy of homogeneously nucleated hydrazine aerosols - Disordered and crystalline phasesIt is shown that aerosols generated at low temperatures and high condensation rate spontaneously form in a highly crystalline state. The resonant absorption bands in the IR spectra of these highly crystalline particles are much sharper than any reported previously in the bulk, and reveal details in the N-H vibrational bands that have not been previously observed. A disordered phase is also observed at somewhat higher temperatures. These results are consistent with this being a supercooled liquid. The fact that the spectra associated with these two aerosol phases are quite different is important to any future attempts at detecting hydrazine aerosols in planetary atmospheres by remote sensing techniques.
Document ID
19930042282
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Dunder, T.
(NASA Headquarters Washington, DC United States)
Clapp, M. L.
(NASA Headquarters Washington, DC United States)
Miller, R. E.
(North Carolina Univ. Chapel Hill, United States)
Date Acquired
August 16, 2013
Publication Date
January 25, 1993
Publication Information
Publication: Journal of Geophysical Research
Volume: 98
Issue: E1
ISSN: 0148-0227
Subject Category
Lunar And Planetary Exploration
Accession Number
93A26279
Distribution Limits
Public
Copyright
Other

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