Determination of the Specific Surface Area of Snow Using Ozonation of 1,1-Diphenylethylene
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F11%3A00050349" target="_blank" >RIV/00216224:14310/11:00050349 - isvavai.cz</a>
Result on the web
<a href="http://pubs.acs.org/doi/abs/10.1021/es202922k" target="_blank" >http://pubs.acs.org/doi/abs/10.1021/es202922k</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/es202922k" target="_blank" >10.1021/es202922k</a>
Alternative languages
Result language
angličtina
Original language name
Determination of the Specific Surface Area of Snow Using Ozonation of 1,1-Diphenylethylene
Original language description
We measured the kinetics of ozonation reaction of 1,1-diphenylethylene (DPE) in artificial snow, produced by shock freezing of DPE aqueous solutions sprayed into liquid nitrogen. It was demonstrated that most of the reactant molecules are in direct (productive) contact with gaseous ozone, thus the technique produces snow with organic molecules largely ejected to the surface of snow grains. The kinetic data were used to evaluate the snow specific surface area (70 cm2 g?1). This number is a measure of theavailability of the molecules on the surface for chemical reaction with gaseous species. The results are consistent with the Langmuir?Hinshelwood type reaction mechanism. For typical atmospheric ozone concentrations in polar areas (20 ppbv), the estimated half-life of DPE, representing environmentally relevant compounds such as alkenes on the surface of snow grains is 5 days at sub-monolayer coverages and ?15 oC.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CC - Organic chemistry
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Environmental Science & Technology
ISSN
0013-936X
e-ISSN
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Volume of the periodical
45
Issue of the periodical within the volume
23
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
10061-10067
UT code for WoS article
000297382700035
EID of the result in the Scopus database
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