Hexabromocyclododecanes (HBCDDs) are a common brominated flame retardant known to accumulate in soil and sediments. The reaction of HBCDDs with iron oxides (i.e., magnetite, goethite, and hematite) in the presence of dissolved Fe(II) was investigated. The individual degradation rates of the three dominant isomers (α, β, and γ) of HBCDD with Fe(II)/iron oxides were investigated at room temperature. Kinetic experiments were performed at different pH with different concentration of Fe(II) and different iron oxide minerals to evaluate the influence of these environmental factors on the degradation of HBCDD. An isomer selective reaction was observed and the observed reaction rates appear fast enough to be potentially relevant for the fate of HBCDD in soil and sediments.

Isomer specific reduction of hexabromocyclododecane by Fe(II) in iron oxide suspensions

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.