-alkoxy-'-hydroxyditridecyl or -acyloxy-'-hydroxyditridecyl peroxides (peroxyhemiacetals) formed by reactions of the hydroperoxides with tridecanal, which is generated along with formaldehyde during biradical formation. The vapor pressures of these compounds estimated from their desorption temperatures are ~10-7-10-14 Torr. These types of reactions could play a role in atmospheric aerosol nucleation and growth and provide a mechanism for creating fine-particle organic peroxides, which are currently of interest because of their potential for adversely impacting human health. " /> THERMAL DESORPTION MASS SPECTROMETRIC ANALYSIS OF ORGANIC AEROSOL FORMED FROM REACTIONS OF 1-TETRADECENE AND O3 IN THE PRESENCE OF ALCOHOLS AND CARBOXYLIC ACIDS. (R826235) | Science Inventory | US EPA

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THERMAL DESORPTION MASS SPECTROMETRIC ANALYSIS OF ORGANIC AEROSOL FORMED FROM REACTIONS OF 1-TETRADECENE AND O3 IN THE PRESENCE OF ALCOHOLS AND CARBOXYLIC ACIDS. (R826235)

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Citation:

Tobias, H. J. AND P. J. Ziemann. THERMAL DESORPTION MASS SPECTROMETRIC ANALYSIS OF ORGANIC AEROSOL FORMED FROM REACTIONS OF 1-TETRADECENE AND O3 IN THE PRESENCE OF ALCOHOLS AND CARBOXYLIC ACIDS. (R826235). ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 34:2105-2115, (2000).

Description:

The chemistry of secondary organic aerosol formation from reactions of
1-tetradecene and O3 in dry air in the presence of excess alcohols
and carboxylic acids was investigated in an environmental chamber using a
thermal desorption particle beam mass spectrometer. Temperature-programmed
thermal desorption of collected aerosol shows that in each reaction two major
aerosol products are formed. The more volatile compounds in each pair of
products are -alkoxytridecyl or
-acyloxytridecyl hydroperoxides,
which were identified by comparison of mass spectra with those of standard
compounds generated by the corresponding liquid-phase ozonolysis reactions. The
formation of organic hydroperoxides in the gas and liquid phases is consistent
with a mechanism involving reactions of the alcohols and carboxylic acids with
stabilized Criegee biradicals generated in the alkene-O3 reaction.
The less volatile compounds are src="/ncer/pubs/images/alpha.gif">-alkoxy-src="/ncer/pubs/images/alpha.gif">'-hydroxyditridecyl or src="/ncer/pubs/images/alpha.gif">-acyloxy-src="/ncer/pubs/images/alpha.gif">'-hydroxyditridecyl peroxides
(peroxyhemiacetals) formed by reactions of the hydroperoxides with tridecanal,
which is generated along with formaldehyde during biradical formation. The vapor
pressures of these compounds estimated from their desorption temperatures are
~10-7-10-14 Torr. These types of
reactions could play a role in atmospheric aerosol nucleation and growth and
provide a mechanism for creating fine-particle organic peroxides, which are
currently of interest because of their potential for adversely impacting human
health.


Record Details:

Record Type:DOCUMENT( JOURNAL/ PEER REVIEWED JOURNAL)
Product Published Date:01/01/2000
Record Last Revised:12/22/2005
Record ID: 77467