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Pyrolysis of organic compounds in the presence of ammonia The Viking Mars lander site alteration experimentThe influence of ammonia on the pyrolysis pattern of selected organic substances sorbed on an inorganic phase was investigated. The thermal degradation products were identified by gas chromatography-mass spectrometry. The feasibility of this technique was tested on a meteoritic sample. All substances examined react with ammonia at the pyrolysis temperature of 500 C, the major products being nitriles and heterocyclic compounds in which nitrogen was incorporated. Based on these results, a model for the non-equilibrium production of organic compounds on Jupiter is discussed. The investigation was performed in connection with the Viking lander molecular analysis. The results obtained indicate that the concentrations of ammonia in the retrorocket fuel exhaust would have been probably too small to produce significant changes in the Martian soil organic compounds if any were found.
Document ID
19780054515
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Holzer, G.
(Houston Univ. TX, United States)
Oro, J.
(Houston, University Houston, Tex., United States)
Date Acquired
August 9, 2013
Publication Date
November 1, 1977
Publication Information
Publication: Organic Geochemistry
Volume: 1
Subject Category
Chemistry And Materials (General)
Accession Number
78A38424
Funding Number(s)
CONTRACT_GRANT: NCA2-OP295-501
CONTRACT_GRANT: NAS1-9685
Distribution Limits
Public
Copyright
Other

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