Production of hydrogen peroxide in Martian and lunar soils

Details Production of hydrogen peroxide in Martian and lunar soils Production of hydrogen peroxide in Martian and lunar soils

Mar 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007e%26psl.255...41h&link_type=abstract

Earth and Planetary Science Letters, Volume 255, Issue 1-2, p. 41-52.

Astronomy and Astrophysics

Astronomy

19

Scientific paper

Freshly ground basaltic minerals produce sufficient quantities of hydrogen peroxide (H2O2) when immersed in solution to explain the oxidizing characteristics of Martian soil samples collected by the Viking landers. H2O2 production occurs as a result of reactions between water and defects at the surface of mechanically pulverized minerals, analogous to carcinogenic quartz dusts. Our results also indicate that dehydroxylation of mineral surfaces results in increased H2O2 production, a highly relevant finding for dusts on the airless surface of the Moon. Reactive, pulverized minerals are important on planetary bodies where impact processes have generated fine-grained basaltic dusts, and may pose a significant health risk to astronauts visiting planetary surfaces where impacts have generated such materials.

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