Carbonic acid monohydrate

Abramson, E.; Bollengier, O.; Brown, J. M.; Journaux, Baptiste; Kaminsky, Werner; Pakhomova, Anna

doi:10.2138/am-2018-6554

Cited by 7 publications

(15 citation statements)

References 42 publications

(47 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The oxidized ocean may have been reduced in time with hydrogen generated by serpentinization enabled by thermal cracking (Vance et al., 2016), but better constraints on the conditions of fracture formation and propagation are required (Klimczak et al., 2019). Further improvements to the thermodynamic data of high pressure

H_{2} normalO

‐

{CO}_{2}

phases (Abramson et al., 2018) and their integration with thermodynamic models (e.g., Perple_X) are also needed to assess the build‐up of the ocean: the stability of such phases can be the factor dictating whether an ocean world will be habitable (Marounina & Rogers, 2020). Finally, we have also made the simplifying assumption that fluid percolation from depth was efficient.…”

Section: Discussionmentioning

confidence: 99%

“…H O E -2 CO E phases (Abramson et al, 2018) and their integration with thermodynamic models (e.g., Perple_X) are also needed to assess the build-up of the ocean: the stability of such phases can be the factor dictating whether an ocean world will be habitable (Marounina & Rogers, 2020). Finally, we have also made the simplifying assumption that fluid percolation from depth was efficient.…”

mentioning

confidence: 99%

See 1 more Smart Citation

A Metamorphic Origin for Europa's Ocean

Daswani

Vance

Mayne

et al. 2021

Geophysical Research Letters

View full text Add to dashboard Cite

Key to understanding the past and present habitability of Jupiter's moon Europa is its composition and evolution. Europa hosts a E 100 km deep liquid water ocean beneath its 3-30 km ice shell (e.g., Schubert et al., 2009). Water, solutes and possible oxidants needed to carry out metabolic processes (Gaidos et al., 1999;Hand et al., 2007) in Europa's ocean were delivered through some combination of Europa's accreted materials, release by subsurface geochemical reactions, and subsequently by meteoritic or Io-genic influx.Surface spectra were initially interpreted as hydrated surface salts from a sulfate-rich ocean (McCord et al., 1998), consistent with models of brine evolution in CI chondrite bodies (Kargel, 1991;Kargel et al., 2000;Zolotov & Shock, 2001). These models propose that Europa's ocean evolved from a reduced Na-Cl-dominated composition to a more oxidized Mg-sulfate ocean as a result of: (a) thermodynamic equilibrium (including by hydrothermal activity) between the ocean and silicate interior, while reduced volatiles 2 H E and 4 CH E produced by water-rock interaction escaped (Zolotov & Kargel, 2009;Zolotov & Shock, 2001, 2004; and/or (b) large fluxes of surface-derived oxidants delivered into the ocean through overturning of the icy lithosphere (Hand et al., 2007;Pasek & Greenberg, 2012). Recently, however, a sulfate-rich ocean has been challenged because the interpretation of hydrated sulfate salts on the surface as an oceanic signature is not apparently consistent with more recent spectroscopic observations. These observations favor instead

show abstract

H_{2} normalO

‐

{CO}_{2}

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

A Metamorphic Origin for Europa's Ocean

Daswani

Vance

Mayne

et al. 2021

Geophysical Research Letters

View full text Add to dashboard Cite

show abstract

“…It was even possible to sublime and re-condense the solid. While the activation barrier of the exothermic monomolecular decay, H 2 CO 3 → CO 2 + H 2 O, is as large as 2 eV, the process becomes auto-catalyzed by the water molecules (Hage et al, 1998 ; Loerting et al, 2000 ; Abramson et al, 2018 ).…”

Section: The Periodic Table As a Blinker As Well As An Eye-openermentioning

confidence: 99%

Understanding Periodic and Non-periodic Chemistry in Periodic Tables

et al. 2021

View full text Add to dashboard Cite

The chemical elements are the “conserved principles” or “kernels” of chemistry that are retained when substances are altered. Comprehensive overviews of the chemistry of the elements and their compounds are needed in chemical science. To this end, a graphical display of the chemical properties of the elements, in the form of a Periodic Table, is the helpful tool. Such tables have been designed with the aim of either classifying real chemical substances or emphasizing formal and aesthetic concepts. Simplified, artistic, or economic tables are relevant to educational and cultural fields, while practicing chemists profit more from “chemical tables of chemical elements.” Such tables should incorporate four aspects: (i) typical valence electron configurations of bonded atoms in chemical compounds (instead of the common but chemically atypical ground states of free atoms in physical vacuum); (ii) at least three basic chemical properties (valence number, size, and energy of the valence shells), their joint variation across the elements showing principal and secondary periodicity; (iii) elements in which the (sp)8, (d)10, and (f)14valence shells become closed and inert under ambient chemical conditions, thereby determining the “fix-points” of chemical periodicity; (iv)peculiar elements at the top and at the bottom of the Periodic Table. While it is essential that Periodic Tables display important trends in element chemistry we need to keep our eyes open for unexpected chemical behavior in ambient, near ambient, or unusual conditions. The combination of experimental data and theoretical insight supports a more nuanced understanding of complex periodic trends and non-periodic phenomena.

show abstract

“…Abramson et al (2017) identified the presence of a stable solid phase in the H 2 O-CO 2 system for P > 4.4 GPa. Abramson et al (2018) then determined that this phase consists of a monohydrate of carbonic acid, measured its crystalline structure and derived its density at P = 6.5 GPa and T = 413.15 K.…”

Section: Monohydrate Of Carbonic Acidmentioning

confidence: 99%

“…The H 2 O-CO 2 phase diagram is poorly characterized at pressures above ∼1 GPa. A recent discovery is the formation of a carbon-bearing solid at high temperatures and pressures: the monohydrate of carbonic acid (H 2 CO 3 • H 2 O) (Abramson et al 2017;Abramson et al 2018). Abramson et al (2017) identified the presence of a stable solid phase in the H 2 O-CO 2 system P > 4.4 GPa.…”

Section: Monohydrate Of Carbonic Acidmentioning

confidence: 99%

Internal Structure and CO₂ Reservoirs of Habitable Water Worlds

Marounina

Rogers

2020

ApJ

View full text Add to dashboard Cite

Water-worlds are water-rich (> 1 wt% H 2 O) exoplanets. The classical models of water-worlds considered layered structures determined by the phase boundaries of pure water. However, waterworlds are likely to possess comet-like compositions, with between ∼ 3 mol% to 30 mol% CO 2 relative to water. In this study, we build an interior structure model of habitable (i.e. surface-liquid-oceanbearing) water-worlds using the latest results from experimental data on the CO 2 -H 2 O system, to explore the CO 2 budget and to localize the main CO 2 reservoirs inside of these planets. We show that CO 2 dissolved in the ocean and trapped inside of a clathrate layer can not accommodate a cometary amount of CO 2 if the planet accretes more than 11 wt% of volatiles (CO 2 + H 2 O) during its formation. We propose a new, potentially dominant, CO 2 reservoir for water-worlds: CO 2 buried inside of the high-pressure water ice mantle as CO 2 ices or (H 2 CO 3 · H 2 O), monohydrate of carbonic acid. If insufficient amounts of CO 2 are sequestered either in this reservoir or the planet's iron core, habitable zone water-worlds could generically be stalled in their cooling before liquid oceans have a chance to condense.

show abstract

Carbonic acid monohydrate

Cited by 7 publications

References 42 publications

A Metamorphic Origin for Europa's Ocean

A Metamorphic Origin for Europa's Ocean

Understanding Periodic and Non-periodic Chemistry in Periodic Tables

Internal Structure and CO₂ Reservoirs of Habitable Water Worlds

Contact Info

Product

Resources

About

Carbonic acid monohydrate

Cited by 7 publications

References 42 publications

A Metamorphic Origin for Europa's Ocean

A Metamorphic Origin for Europa's Ocean

Understanding Periodic and Non-periodic Chemistry in Periodic Tables

Internal Structure and CO2 Reservoirs of Habitable Water Worlds

Contact Info

Product

Resources

About

Internal Structure and CO₂ Reservoirs of Habitable Water Worlds