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Thio residue from thermal processing of cometary ices containing carbon disulfide and ammonia
Published in Elsevier Ltd
2016
Volume: 58
   
Issue: 3
Pages: 438 - 443
Abstract
We have carried out experimental investigation on binary ice mixture containing carbon disulfide (CS 2 ) and ammonia (NH 3 ) ices formed at 10 K. Icy films were formed in various combinations to investigate the reactivity of CS 2 and NH 3 molecules on cometary nucleus. In the case of NH 3 ices, deposition carried out at 10 K was found to contain NH 3 homo-dimers that was found to reorient upon annealing to 40 K. Phase transition was found to take place as the 10 K ice was warmed to higher temperatures and the phase transition temperature was found to be 5 K higher for the mixed ice in comparison to the layered deposits. Thermal processing of the mixed deposition of CS 2 -NH 3 ice was found to leave thio residue, which could be ammonium dithiocarbamate that was even found to be present at 340 K. © 2016 COSPAR.
About the journal
JournalData powered by TypesetAdvances in Space Research
PublisherData powered by TypesetElsevier Ltd
ISSN02731177
Open AccessNo
Concepts (13)
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    Ammonia
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    CARBON FILMS
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    Deposition
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    Dimers
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    Heat treatment
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    Ice
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    Molecules
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    ASTROCHEMISTRY
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    COMETS: GENERAL
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    INFRARED: GENERAL
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    ISM: MOLECULES
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    METHODS: LABORATORY
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    Carbon disulfide