Homogeneous freezing nucleation rates and crystallization dynamics of single levitated sulfuric acid solution droplets

Autor(en): Vortisch, H
Kramer, B
Weidinger, I
Woste, L
Leisner, T
Schwell, M
Baumgartel, H
Ruhl, E
Stichwörter: Chemistry; Chemistry, Physical; CLOUDS; ICE NUCLEATION; KINETICS; Physics; Physics, Atomic, Molecular & Chemical; SULFATE AEROSOLS; SUPERCOOLED WATER
Erscheinungsdatum: 2000
Herausgeber: ROYAL SOC CHEMISTRY
Journal: PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volumen: 2
Ausgabe: 7
Startseite: 1407
Seitenende: 1413
Zusammenfassung: 
Supercooled sulfuric acid solution droplets are a major constituent of the stratospheric background aerosol. We report the rate of homogeneous freezing and the crystallization dynamics of single levitated sulfuric acid solution droplets with 0 to 57.6 wt.% H2SO4. The energy of formation of the critical nucleus and the self-diffusion activation energy are deduced from the experiments as a function of temperature and concentration. The results are compared to both theoretical and experimental work of other groups.
ISSN: 14639076
DOI: 10.1039/a908225e

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