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Raman‐ and Mie‐Spectroscopic Studies of the Cooling Behaviour of Levitated, Single Sulfuric Acid/H 2 O Microdroplets
Author(s) -
Mund C.,
Zellner R.
Publication year - 2003
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200200629
Subject(s) - sulfuric acid , supercooling , raman spectroscopy , mie scattering , chemistry , evaporation , relaxation (psychology) , raman scattering , aerosol , analytical chemistry (journal) , light scattering , materials science , scattering , inorganic chemistry , optics , thermodynamics , chromatography , organic chemistry , social psychology , psychology , physics
Acidic aerosols aloft: The behaviour of supercooled, single sulfuric acid/H 2 O microdroplets with respect to concentration and temperature relaxation can be investigated with Raman‐ and Mie‐scattering techniques upon scavenging of such particles in a vertical laser beam. The rates of relaxation by water evaporation prevent such particles from homogeneous freezing forming either H 2 O, ice or sulfuric acid trihydrate (see picture). Instead thermodynamically stable solutions are formed.