||Sulfur dioxide oxidation reactions in aqueous solutions /
Martin, L. R. ;
Damschen, D. E. ;
Judeikis, H. D.
||Aerospace Corp., El Segundo, CA. Chemistry and Physics Lab.;Environmental Sciences Research Lab., Research Triangle Park, NC.
|| U.S. Environmental Protection Agency, Environmental Sciences Research Laboratory,
||EPA/600/7-81/085; ATR-81(7700)-1; EPA-68-02-2702
Sulfur dioxide--Environmental aspects--United States. ;
Nitrates--Environmental aspects--United States. ;
Oxidation-reduction reaction--Measurement. ;
Sulphur dioxide--Environmental aspects--United States
Air pollution ;
Sulfur oxides ;
Nitrogen oxides ;
Reaction kinetics ;
Laboratory equipment ;
Atmospheric chemistry ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||38 pages ; 28 cm
This is the final report on a three year project to study the kinetics and mechanisms of some 105 reactions involving the aqueous oxidation of sulfur dioxide and nitrogen oxides in mixed catalyst-oxidant systems at low pH (0-3). The 105 systems involve six redox reaction types: SO2/O2; SO2/NOx; SO2/H2O2; SO2/O3; NOx/O3; NOx/H2O2. Mn(+2) and Fe(+2) are the only important metal catalysts. In the SO2/NOx system the reaction is rapid producing N2O. The SO2/H2O2 is extremely rapid and could account for the rapid formation of sulfate in the atmosphere when significant amounts of aerosol are present. The SO2/O3 reaction is not as rapid as the peroxide but the relative concentrations of the two makes the ozone reaction also significant.
Caption title. "May 1981." "EPA-600/7-81-085." Microfiche.