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Main Title Aerosol formation from gas phase reactions of ozone and olefin in the presence of sulfur dioxide /
Author McNelis., David N.
Other Authors
Author Title of a Work
McNelis, D. N.
Wilson, William E.
CORP Author National Environmental Research Center, Las Vegas, Nev.;National Environmental Research Center, Research Triangle Park, N.C. Chemistry and Physics Lab.
Publisher National Environmental Research Center, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1974
Report Number EPA-650/4-74-034
Stock Number PB237345
OCLC Number 52565059
Subjects Aerosols ; Alkenes ; Atmosphere ; Ozone ; Sulfates ; Sulfur Dioxide
Additional Subjects Alkene hydrocarbons ; Ozone ; Sulfur dioxide ; Chemical reactions ; Reaction kinetics ; Stoichiometry ; Ethylene ; Oxygen ; Concentration(Composition) ; Humidity ; Aerosols ; Propylene ; Oxidation ; Experimental design ; Vapor phases ; Organic sulfates ; Rates(Per time) ; Aerosol formation ; Chemical reaction mechanisms
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 650-4-74-034 Headquarters Library/Washington,DC 01/05/2015
EKBD  EPA-650/4-74-034 Research Triangle Park Library/RTP, NC 08/29/2017
ELBD ARCHIVE EPA 650-4-74-034 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
NTIS  PB-237 345 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation x, 220 pages : illustrations, charts ; 28 cm.
The dark-phase reaction of olefin-ozone-sulfur dioxide was studied in an attempt to elucidate the mechanism involved in the oxidative consumption of the sulfur dioxide. The effect of several variables on the reaction stoichiometry and on the aerosol production are reported. The variables include the reactant concentrations, the relative humidity, molecular oxygen concentration, and the olefin species although propylene was the primary olefin studied. The stoichiometry was found to be a smooth function of the olefin/ozone initial concentration and was essentially unaffected by varying the relativity humidity over the range studied or by the addition of sulfur dioxide. The molecular oxygen concentration had a significant effect on the reaction stoichiometry and on the product formation in the propylene-ozone thermal reaction. A tentative mechanism is advanced for the oxidative consumption of the sulfur dioxide and the aerosol formation, growth and decay is explained in terms of the processes of nucleation condensation and coagulation. (Modified author abstract)
Project Officer: William E. Wilson. "Chemistry and Physics Laboratory, National Environmental Research Center." "August 1974." "Program Element No. 21AB; ROAP 38." "EPA-650/4-74-034." PB 237 345--NTIS.