Mercury speciation in the presence of polysulfides

Article Abstract:

Researchers from the Massachusetts Institute of Technology and Princeton University explained the solubility of cinnabar in the presence of elemental sulfur using the complex Hg(Sx)2(2-) and HgSxOH-.

Inorganic Mercury Compounds, Princeton University, Massachusetts Institute of Technology, Mercury industry, Mercury compounds

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Biotransformation of uranium compounds in high ionic strength brine by a halophilic bacterium under denitrifying conditions

Article Abstract:

Researchers from the Brookhaven National Laboratory, New York and Sandia National Laboratories, New Mexico investigated the transformation of uranyl citrate, uranyl nitrate, uranyl carbonate and uranyl ethylenediaminetetraacetate into uranyl hydroxide and uranyl hydroxophosphato species by Halomonas sp., a denitrifying halophilic bacterium.

Uranium Compounds, Uranium industry, United States. Department of Energy. Brookhaven National Laboratory, United States. Department of Energy. Sandia National Laboratories

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Equilibrium and kinetics of bromine chloride hydrolysis

Article Abstract:

Liquid halogen reactions are important during Arctic sunrise observation in tropospheric ozone depletion where bromine chloride is an important factor, and observations reveal that outer layer ozone is depleted from normal to low levels with an increase of filterable bromine soon after polar sunrise. Bromine atoms were implied as the cause of ozone depletion in the Arctic, however, kinetic and thermodynamic data from the aqueous-phase reactions is needed to explain the bromine release mechanism from aerosols, sea ice, sea-salt or snowpack.

Bromine Compounds, Statistical Data Included, Environmental aspects, Illustration, Arctic regions, Ozone layer depletion, Bromine, Tropospheric circulation, Polar regions

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