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Evaporation of liquids and solutions in confined geometry.

Authors
Type
Published Article
Journal
Langmuir : the ACS journal of surfaces and colloids
Publication Date
Volume
20
Issue
16
Pages
6538–6541
Identifiers
PMID: 15274550
Source
Medline
License
Unknown

Abstract

We describe a drying setup where a liquid droplet is confined between two circular glass plates and allowed to evaporate. Optical imaging of the shrinking droplet provides the temporal evolution of the solvent volume. For a pure liquid, we measure the diffusion coefficient of the evaporating gas with a good accuracy. For a solution, the slowing down of evaporation by progessive concentration of the solute yields a direct measurement of the solvent activity.

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