title: Formation of chlorinated species through reaction of SO₂ with NaClO₂ powder and their role in the oxidation of NO and Hg⁰.
abstract: This study examines gaseous chlorinated species generated from the reaction of sulfur dioxide (SO₂) with sodium chlorite powder (NaClO₂(s)) to obtain insight into the propensity of this process to enhance NO and Hg⁰ oxidation. A packed bed reactor containing NaClO₂(s) was used and the reaction temperature was set to 130 °C. Initially, we determined that the presence of SO₂ enhances the oxidation of NO and Hg⁰ by reaction with NaClO₂(s). We then introduced NO₂ into the gas mixture as a radical scavenger and determined that the chlorinated species generated by the reaction of SO₂ with NaClO₂(s) are OClO, Cl, ClO, and Cl₂. Based on these results, we suggest that such gaseous chlorinated ones are responsible for the enhancement of NO and Hg⁰ oxidation.
authors.forename: Youngchul
authors.initials: Y
authors.lastname: Byun
authors.forename: Ian P
authors.initials: IP
authors.lastname: Hamilton
authors.forename: Xin
authors.initials: X
authors.lastname: Tu
authors.forename: Dong Nam
authors.initials: DN
authors.lastname: Shin
mesh_terms: D002712:Chlorides / Q000737:chemistry*; D017606:Chlorine Compounds / Q000138:chemical synthesis*; D008628:Mercury / Q000737:chemistry; D009569:Nitric Oxide / Q000737:chemistry; D010084:Oxidation-Reduction; D013458:Sulfur Dioxide / Q000737:chemistry*
chemical_list: D002712:Chlorides; D017606:Chlorine Compounds; D013458:Sulfur Dioxide; D009569:Nitric Oxide; D008628:Mercury; C001599:chlorite