Physics
Scientific paper
May 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994jgr....9910887g&link_type=abstract
Journal of Geophysical Research, vol. 99, no. E5, p. 10,887-10,897
Physics
4
Basalt, Lunar Resources, Lunar Rocks, Oxygen Production, Reduction (Chemistry), Ilmenite, Lunar Bases, Lunar Geology, Olivine, Pyroxenes
Scientific paper
Oxygen production from a lunar rock has been experimentally demonstrated for the first time. A 10 g sample of high-Ti basalt 70035 was reduced with hydrogen in seven experiments at temperatures of 900-1050 C and pressures of 14.7-150 psia. In all experiments, water evolution began almost immediately and was essentially complete in tens of minutes. Oxygen yields ranged from 2.93 to 4.61% of the starting sample weight, and showed weak dependence on temperature and pressure. Analysis of the solid samples demonstrated total reduction of Fe(2+) in ilmenite and small degrees of reduction in olivine and pyroxene. Ti O2 was also partially reduced to one or more suboxides. Data from these experiments provide a basis for predicting the yield of oxygen from lunar basalt as well as new constraints on natural reduction in the lunar regolith.
Allen Carlton C.
Bruenemen David J.
Gibson Michael A.
Kanamori Hiroshi
Knudsen Christian W.
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