Hydroperoxyl radical (HO2•) oxidizes dibromide radical anion (•Br2-) to bromine (Br2) in aqueous solution: Implications for the formation of Br2 in the marine boundary layer

Details Hydroperoxyl radical (HO2•) oxidizes dibromide radical anion (•Br2-) to bromine (Br2) in aqueous solution: Implications for the formation of Br2 in the marine boundary layer Hydroperoxyl radical (HO2•) oxidizes dibromide radical anion (•Br2-) to bromine (Br2) in aqueous solution: Implications for the formation of Br2 in the marine boundary layer

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30asc14m&link_type=abstract

Geophysical Research Letters, Volume 30, Issue 24, pp. ASC 14-1, CiteID 2297, DOI 10.1029/2003GL018572

Mathematics

Logic

Atmospheric Composition And Structure: Aerosols And Particles (0345, 4801), Atmospheric Composition And Structure: Chemical Kinetic And Photochemical Properties, Atmospheric Composition And Structure: Troposphere-Composition And Chemistry, Oceanography: Biological And Chemical: Aerosols (0305), Oceanography: Biological And Chemical: Oxidation/Reduction Reactions

Scientific paper

The release of photoactive halogen species such as Br2 from sea-salt particles, snowpack, and sea-ice can have significant effects on chemistry in the marine boundary layer (MBL). Although the reaction of hydroperoxyl radical (HO2•) with dibromide radical anion (•Br2-) might be a key step in the formation and release of Br2, there is currently no consensus on whether this reaction produces bromide (Br-) or molecular bromine (Br2). To address this question, we measured the formation of gaseous and aqueous oxidized bromide (primarily Br2) in illuminated bromide solutions as a function of pH. Results from these two sets of experimental data are best explained by kinetic models where HO2• oxidizes •Br2- to Br2. Using this reaction in a simple aerosol model reveals that the hydroxyl radical-induced oxidation of particulate bromide, followed by reaction of •Br2- with HO2•, could be an important source of Br2 in the MBL.

Affiliated with

Also associated with

No associations

Rating

Hydroperoxyl radical (HO2•) oxidizes dibromide radical anion (•Br2-) to bromine (Br2) in aqueous solution: Implications for the formation of Br2 in the marine boundary layer does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Hydroperoxyl radical (HO2•) oxidizes dibromide radical anion (•Br2-) to bromine (Br2) in aqueous solution: Implications for the formation of Br2 in the marine boundary layer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydroperoxyl radical (HO2•) oxidizes dibromide radical anion (•Br2-) to bromine (Br2) in aqueous solution: Implications for the formation of Br2 in the marine boundary layer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-879404