Water-carbon dioxide solid phase equilibria at pressures above 4 GPa

Abstract A solid phase in the mixed water-carbon dioxide system, previously identified as carbonic acid, was observed in the high-pressure diamond-anvil cell. The pressure-temperature paths of both its melting and peritectic curves were measured, beginning at 4.4 GPa and 165 °C (where it exists in a...

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Autores principales:	E. H. Abramson, O. Bollengier, J. M. Brown
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/cc5a9951ce6140999875c0bfbfe016e2
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spelling	oai:doaj.org-article:cc5a9951ce6140999875c0bfbfe016e22021-12-02T16:06:41ZWater-carbon dioxide solid phase equilibria at pressures above 4 GPa10.1038/s41598-017-00915-02045-2322https://doaj.org/article/cc5a9951ce6140999875c0bfbfe016e22017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00915-0https://doaj.org/toc/2045-2322Abstract A solid phase in the mixed water-carbon dioxide system, previously identified as carbonic acid, was observed in the high-pressure diamond-anvil cell. The pressure-temperature paths of both its melting and peritectic curves were measured, beginning at 4.4 GPa and 165 °C (where it exists in a quadruple equilibrium, together with an aqueous fluid and the ices H2O(VII) and CO2(I)) and proceeding to higher pressures and temperatures. Single-crystal X-ray diffraction revealed a triclinic crystal with unit cell parameters (at 6.5 GPa and 20 °C) of a = 5.88 Å, b = 6.59 Å, c = 6.99 Å, α = 88.7°, β = 79.7°, and γ = 67.7°. Raman spectra exhibit a major line at ~1080 cm−1 and lattice modes below 300 cm−1.E. H. AbramsonO. BollengierJ. M. BrownNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-6 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q E. H. Abramson O. Bollengier J. M. Brown Water-carbon dioxide solid phase equilibria at pressures above 4 GPa
description	Abstract A solid phase in the mixed water-carbon dioxide system, previously identified as carbonic acid, was observed in the high-pressure diamond-anvil cell. The pressure-temperature paths of both its melting and peritectic curves were measured, beginning at 4.4 GPa and 165 °C (where it exists in a quadruple equilibrium, together with an aqueous fluid and the ices H2O(VII) and CO2(I)) and proceeding to higher pressures and temperatures. Single-crystal X-ray diffraction revealed a triclinic crystal with unit cell parameters (at 6.5 GPa and 20 °C) of a = 5.88 Å, b = 6.59 Å, c = 6.99 Å, α = 88.7°, β = 79.7°, and γ = 67.7°. Raman spectra exhibit a major line at ~1080 cm−1 and lattice modes below 300 cm−1.
format	article
author	E. H. Abramson O. Bollengier J. M. Brown
author_facet	E. H. Abramson O. Bollengier J. M. Brown
author_sort	E. H. Abramson
title	Water-carbon dioxide solid phase equilibria at pressures above 4 GPa
title_short	Water-carbon dioxide solid phase equilibria at pressures above 4 GPa
title_full	Water-carbon dioxide solid phase equilibria at pressures above 4 GPa
title_fullStr	Water-carbon dioxide solid phase equilibria at pressures above 4 GPa
title_full_unstemmed	Water-carbon dioxide solid phase equilibria at pressures above 4 GPa
title_sort	water-carbon dioxide solid phase equilibria at pressures above 4 gpa
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/cc5a9951ce6140999875c0bfbfe016e2
work_keys_str_mv	AT ehabramson watercarbondioxidesolidphaseequilibriaatpressuresabove4gpa AT obollengier watercarbondioxidesolidphaseequilibriaatpressuresabove4gpa AT jmbrown watercarbondioxidesolidphaseequilibriaatpressuresabove4gpa
_version_	1718384932195139584

Water-carbon dioxide solid phase equilibria at pressures above 4 GPa

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