Low-temperature thermal reactions between SO2 and H2O2 and their relevance to the jovian icy satellites

Mark J. Loeffler; Reggie L. Hudson

doi:10.1016/j.icarus.2013.02.005

Low-temperature thermal reactions between SO₂ and H₂O₂ and their relevance to the jovian icy satellites

Mark J. Loeffler, Reggie L. Hudson

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

Here we present first results on a non-radiolytic, thermally-driven reaction sequence in solid H₂O+SO₂+H₂O₂ mixtures at 50-130K, which produces sulfate (SO42-), and has an activation energy of 53kJ/mole. We suspect that these results may explain some of the observations related to the presence and distribution of H₂O₂ across Europa's surface as well as the lack of H₂O₂ on Ganymede and Callisto.

Original language	English (US)
Pages (from-to)	257-259
Number of pages	3
Journal	Icarus
Volume	224
Issue number	1
DOIs	https://doi.org/10.1016/j.icarus.2013.02.005
State	Published - May 2013
Externally published	Yes

Keywords

Europa
Ices, IR spectroscopy
Jupiter, Satellites

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1016/j.icarus.2013.02.005

Cite this

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title = "Low-temperature thermal reactions between SO2 and H2O2 and their relevance to the jovian icy satellites",

abstract = "Here we present first results on a non-radiolytic, thermally-driven reaction sequence in solid H2O+SO2+H2O2 mixtures at 50-130K, which produces sulfate (SO42-), and has an activation energy of 53kJ/mole. We suspect that these results may explain some of the observations related to the presence and distribution of H2O2 across Europa's surface as well as the lack of H2O2 on Ganymede and Callisto.",

keywords = "Europa, Ices, IR spectroscopy, Jupiter, Satellites",

author = "Loeffler, {Mark J.} and Hudson, {Reggie L.}",

note = "Funding Information: The support of NASA{\textquoteright}s Planetary Geology and Geophysics program is gratefully acknowledged. R.L.H. also acknowledges support from the NASA Astrobiology Institute through the Goddard Center for Astrobiology. ",

year = "2013",

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T1 - Low-temperature thermal reactions between SO2 and H2O2 and their relevance to the jovian icy satellites

AU - Loeffler, Mark J.

AU - Hudson, Reggie L.

N1 - Funding Information: The support of NASA’s Planetary Geology and Geophysics program is gratefully acknowledged. R.L.H. also acknowledges support from the NASA Astrobiology Institute through the Goddard Center for Astrobiology.

PY - 2013/5

Y1 - 2013/5

N2 - Here we present first results on a non-radiolytic, thermally-driven reaction sequence in solid H2O+SO2+H2O2 mixtures at 50-130K, which produces sulfate (SO42-), and has an activation energy of 53kJ/mole. We suspect that these results may explain some of the observations related to the presence and distribution of H2O2 across Europa's surface as well as the lack of H2O2 on Ganymede and Callisto.

AB - Here we present first results on a non-radiolytic, thermally-driven reaction sequence in solid H2O+SO2+H2O2 mixtures at 50-130K, which produces sulfate (SO42-), and has an activation energy of 53kJ/mole. We suspect that these results may explain some of the observations related to the presence and distribution of H2O2 across Europa's surface as well as the lack of H2O2 on Ganymede and Callisto.

KW - Europa

KW - Ices, IR spectroscopy

KW - Jupiter, Satellites

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