Investigations of chemical reactions between single levitated magnesium chloride microdroplets with SO2 and NOx by means of Raman spectroscopy and elastic light scattering
- 1 January 1999
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Physical Chemistry Chemical Physics
- Vol. 1 (24) , 5497-5502
- https://doi.org/10.1039/a905807i
Abstract
The combination of Raman spectroscopy with an electrodynamic levitation technique enables insitu and non-invasive investigations of chemical reactions in single microparticles without any disturbing substrate or wall effects. Time-dependent Raman spectra during the condensation of a magnesium chloride microparticle (a model substance of sea-salt particles) with water vapour are reported. The condensation of a MgCl2·6H2O microparticle is also investigated by means of elastic light scattering data. Additionally, the solvation of SO2 and NOx in a MgCl2·6H2O microdroplet is studied by Raman spectroscopy. The uptake of these gases is also determined from elastic light scattering data.Keywords
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