The state of hydrogen peroxide on Europa

M. J. Loeffler; R. A. Baragiola

doi:10.1029/2005GL023569

The state of hydrogen peroxide on Europa

M. J. Loeffler, R. A. Baragiola

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Abstract

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.

Original language	English (US)
Article number	L17202
Pages (from-to)	1-4
Number of pages	4
Journal	Geophysical Research Letters
Volume	32
Issue number	17
DOIs	https://doi.org/10.1029/2005GL023569
State	Published - Sep 16 2005
Externally published	Yes

ASJC Scopus subject areas

Geophysics
General Earth and Planetary Sciences

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10.1029/2005GL023569

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AB - 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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The state of hydrogen peroxide on Europa

Abstract

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