The state of hydrogen peroxide on Europa

Details The state of hydrogen peroxide on Europa The state of hydrogen peroxide on Europa

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3217202l&link_type=abstract

Geophysical Research Letters, Volume 32, Issue 17, CiteID L17202

Physics

14

Planetary Sciences: Solid Surface Planets: Ices, Planetary Sciences: Solid Surface Planets: Surface Materials And Properties, Planetary Sciences: Comets And Small Bodies: Ices, Planetary Sciences: Comets And Small Bodies: Radiation And Chemistry, Planetary Sciences: Solar System Objects: Europa

Scientific paper

We report infrared reflectance studies in the laboratory that reveal the state of hydrogen peroxide on Europa. Detailed analysis of the 3.5 μm infrared absorption band for hydrogen peroxide grown in a number of water ice environments shows that, for temperatures and concentrations relevant to Europa (80-130 K), hydrogen peroxide molecules exist in isolated trimers H2O2•2H2O. If the temperature on an icy body containing H2O2 approaches 150 K, as on Ganymede, the trimers aggregate into precipitates of crystalline dihydrate H2O2•2H2O.

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