| Using small angle x-ray scattering to measure the homogeneous nucleation rates of n-propanol, n-butanol, and n-pentanol in supersonic nozzle expansions. | |
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MedLine Citation:
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PMID: 19045018 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In our earlier publication [M. Gharibeh et al., J. Chem. Phys. 122, 094512 (2005)] we determined the temperatures and partial pressures corresponding to the maximum nucleation rate for a series n-alcohols (C(i)H(2i+l)OH; i=3-5) during condensation in a supersonic nozzle. Although we were able to determine the characteristic time Deltat(Jmax) corresponding to the peak nucleation rate, we were unable to measure the number density of the aerosol and, thus, unable to directly quantify the nucleation rate J. In this paper we report the results of our pioneering small angle x-ray scattering (SAXS) experiments of n-alcohol droplets formed in a supersonic nozzle together with a new series of complementary pressure trace measurements. By combining the SAXS and pressure trace measurement data we determine the nucleation rates as a function of temperature and supersaturation. |
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Authors:
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David Ghosh; Alexandra Manka; Reinhard Strey; Soenke Seifert; Randall E Winans; Barbara E Wyslouzil |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: The Journal of chemical physics Volume: 129 ISSN: 1089-7690 ISO Abbreviation: J Chem Phys Publication Date: 2008 Sep |
Date Detail:
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Created Date: 2008-12-02 Completed Date: 2009-01-23 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0375360 Medline TA: J Chem Phys Country: United States |
Other Details:
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Languages: eng Pagination: 124302 Citation Subset: IM |
Affiliation:
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Institut für Physikalische Chemie, Universität zu Köln, Luxemburger Strasse 116, D-50939 Köln, Germany. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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1-Propanol
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chemistry* Butanols / chemistry* Pentanols / chemistry* Phase Transition* Pressure Scattering, Small Angle X-Ray Diffraction |
| Chemical | |
Reg. No./Substance:
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0/Butanols; 0/Pentanols; 71-23-8/1-Propanol |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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