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Reduction of lunar basalt 70035: Oxygen yield and reaction product analysisOxygen 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.
Document ID
19950028432
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Gibson, Michael A.
(Carbotek Developement Laboratories, Houston, TX United States)
Knudsen, Christian W.
(Carbotek Developement Laboratories, Houston, TX United States)
Bruenemen, David J.
(Carbotek Developement Laboratories, Houston, TX United States)
Allen, Carlton C.
(Lockheed Engineering and Sciences Co., Houston, TX United States)
Kanamori, Hiroshi
(Shimizu Corporation Tokyo, Japan)
Mckay, David S.
(NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 16, 2013
Publication Date
May 25, 1994
Publication Information
Publication: Journal of Geophysical Research
Volume: 99
Issue: E5
ISSN: 0148-0227
Subject Category
Lunar And Planetary Exploration
Accession Number
95A60031
Distribution Limits
Public
Copyright
Other

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