Main Title |
Investigation of important hydroxyl radical reactions in the perturbed troposphere / |
Author |
Davis, D. D.
|
Publisher |
Environmental Sciences Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, |
Year Published |
1977 |
Report Number |
PB274012; EPA-600/3-77-111; EPA-R-804629 |
Stock Number |
PB-274 012 |
OCLC Number |
52420564 |
Subjects |
Oxidation ;
Hydroxyl group ;
Chemical kinetics ;
Hydrocarbons
|
Additional Subjects |
Reaction kinetics ;
Air pollution ;
Troposphere ;
Chemical reactions ;
Fluorescence ;
Hydrocarbons ;
Benzene ;
Toluene ;
Xylenes ;
Ethylene ;
Acetylene ;
Propylene ;
Butene ;
Fluorides ;
Photolysis ;
Hydroxyl radicals ;
Atmospheric chemistry ;
Benzene/ethyl ;
Benzene/propyl ;
Benzene/hexafluoro ;
Benzene/pentafluoro ;
Time of flight mass spectrometry
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA 600-3-77-111 |
c.1 |
Headquarters Library/Washington,DC |
01/27/2014 |
ELBD ARCHIVE |
EPA 600-3-77-111 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ELBD RPS |
EPA 600-3-77-111 |
repository copy |
AWBERC Library/Cincinnati,OH |
10/17/2014 |
ESAD |
EPA 600-3-77-111 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
NTIS |
PB-274 012 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
78 p. : ill. ; 28 cm. |
Abstract |
The flash-photolysis resonance fluorescence technique was used to study the reaction kinetics of hydroxyl radicals with ten aromatic and six olefinic hydrocarbons at 298 K and several diluent gas pressures. The aromatic compounds that were studied include benzene, toluene, ethylbenzene, n-propylbenzene, isopropylbenzene, hexafluorobenzene, n-propyl pentafluorobenzene, and o-, m-, and p-xylenes; and the olefins include ethylene, acetylene, propylene, 1-butene, cis-2-butene, and tetramethylethylene. Based on our extensive data on OH-substituted aromatic hydrocarbon reactions, it has been inferred that addition of hydroxyl radicals to the aromatic ring is the dominant reaction in these systems. In the case of OH-olefin reactions, addition of OH to the double bond seems to be a prominent path for the heavier unsaturates. From these rate constant data, the lifetimes of all these hydrocarbons in the lower troposphere has been calculated. Attempts were made to understand the mechanisms involved in the reactions of OH with substituted aromatic hydrocarbons, using the technique of laser flash photolysis, time-of-flight mass spectrometry. |
Notes |
"EPA-600/3-77-111 " "October 1977." PB 274 012--NTIS. Includes bibliographical references (p. 75-77). |
Place Published |
Research Triangle Park, NC |
Corporate Au Added Ent |
United States. Environmental Protection Agency. Office of Research and Development.; Environmental Sciences Research Laboratory. |
Title Ser Add Ent |
Ecological research series. |
PUB Date Free Form |
1977 |
Series Title Traced |
Ecological research series |
Series Title Untraced |
Ecological research series |
NTIS Prices |
PC A05/MF A01 |
BIB Level |
m |
Cataloging Source |
OCLC/T |
OCLC Time Stamp |
20140527111221 |
Language |
eng |
Origin |
OCLC |
Type |
MERGE |
OCLC Rec Leader |
01511cam 2200397Ka 45020 |