Cited by 40Astro and Planetary ScienceOrigins and Evolution of LifeSpace Science and Extraterrestrial Life

Low-Temperature Alkaline pH Hydrolysis of Oxygen-Free Titan Tholins: Carbonates' Impact

Brassé, Coralie, Buch, Arnaud, Coll, Patrice, Raulin, François·2017·Astrobiology

Abstract

Titan, the largest moon of Saturn, is one of the key planetary objects in the field of exobiology. Its dense, nitrogen-rich atmosphere is the site of important organic chemistry. This paper focuses on the organic aerosols produced in Titan's atmosphere that play an important role in atmospheric and surface processes and in organic chemistry as it applies to exobiological interests. To produce reliable laboratory analogues of these aerosols, we developed, tested, and optimized a device for the synthesis of clean tholins. The potential chemical evolution of Titan aerosols at Titan's surface has been studied, in particular, the possible interaction between aerosols and putative ammonia-water cryomagma. Modeling of the formation of Saturn's atmosphere has permitted the characterization of a composition of salts in the subsurface ocean and cryolava. From this new and original chemical composition, a laboratory study of several hydrolyses of tholins was carried out. The results obtained show the formation of many organic compounds, among them, species identified only in the presence of salts. In addition, a list of potential precursors of these compounds was established, which could provide a database for research of the chemical composition of tholins and/or aerosols of Titan. Key Words: Titan tholins—Titan aerosols—Hydrolysis—Carbonates—Titan's surface. Astrobiology 17, 8–26.

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Crossref · 10.1089/ast.2016.1524

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  • They can chemically evolve to more complex organics, including compounds of biological (terrestrial) interest such as urea, amino acids, purines and pyrimidines.

    “They can chemically evolve to more complex organics, including compounds of biological (terrestrial) interest such as urea, amino acids, purines and pyrimidines (Brassé et al. 2017).”

    From The Emergence of Life (2019) · cites this paper as Brassé et al. 2017

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Authors
Brassé, C., Buch, A., Coll, P., & Raulin, F.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • École Centrale Paris (FR)
Corresponding author
Raulin, François
Venue
Astrobiology
Published
2017-01
Volume
17
Issue
1
Pages
8-26
ISSN
  • 1531-1074 (ISSN-L)
  • 1557-8070
OpenAlex
W2582599557
Cited by
40
References
59
Citations by year
2026: 9 · 2025: 6 · 2024: 7 · 2023: 4 · 2022: 3 · 2021: 4 · 2019: 5 · 2018: 2
FWCI
1.05
Type
journal article
Language
en
Open access
closed
Locations
  • Astrobiology (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astro and Planetary Science
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Origins and Evolution of Life
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Space Science and Extraterrestrial Life
Keywords
Titan aerosols, low-temperature hydrolysis, carbonates, prebiotic chemistry, astrobiology
MeSH terms
Aerosols, Alkalies, Amino Acids, Carbonates, Cold Temperature, Hydrogen-Ion Concentration, Hydrolysis, Gas Chromatography-Mass Spectrometry, Oceans and Seas, Oxygen, Saturn

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