Characterization of palmitic and lauric acid aerosols from rapid expansion of supercritical CO2 solutions
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Date
2008-04-10Type
- Journal Article
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no
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Abstract
Palmitic acid aerosols and lauric acid aerosols were generated by rapid expansion of supercritical CO2 solutions. The particle properties were analysed by rapid-scan infrared spectroscopy in situ, by X-ray powder diffraction, with a scanning mobility particle sizer, and by scanning electron microscopy. Particles with irregular elongated shapes were found. Most particles and agglomerates have sizes between 250 and 750 nm. Fewer agglomerates with sizes up to several microns are observed. Our investigation reveals that strong agglomeration takes place at the Mach disc. Palmitic and lauric acid particles are both crystalline and most particles crystallize in the C-form. Show more
Publication status
publishedExternal links
Journal / series
Molecular PhysicsVolume
Pages / Article No.
Publisher
Taylor & FrancisSubject
Palmitic acid aerosol; Lauric acid aerosol; Rapid expansion of supercritical solutions; Infrared spectroscopy; Particle agglomerationOrganisational unit
03961 - Signorell, Ruth / Signorell, Ruth
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ETH Bibliography
no
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