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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| Format: | Article |
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Nature Portfolio
2017-04-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-017-00915-0 |
| _version_ | 1818430400304775168 |
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| author | E. H. Abramson O. Bollengier J. M. Brown |
| author_facet | E. H. Abramson O. Bollengier J. M. Brown |
| author_sort | E. H. Abramson |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-14T15:32:48Z |
| format | Article |
| id | doaj.art-cc5a9951ce6140999875c0bfbfe016e2 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-14T15:32:48Z |
| publishDate | 2017-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-cc5a9951ce6140999875c0bfbfe016e22022-12-21T22:55:50ZengNature PortfolioScientific Reports2045-23222017-04-01711610.1038/s41598-017-00915-0Water-carbon dioxide solid phase equilibria at pressures above 4 GPaE. H. Abramson0O. Bollengier1J. M. Brown2Department of Earth and Space Sciences, University of WashingtonDepartment of Earth and Space Sciences, University of WashingtonDepartment of Earth and Space Sciences, University of WashingtonAbstract 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.https://doi.org/10.1038/s41598-017-00915-0 |
| spellingShingle | E. H. Abramson O. Bollengier J. M. Brown Water-carbon dioxide solid phase equilibria at pressures above 4 GPa Scientific Reports |
| title | 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_short | Water-carbon dioxide solid phase equilibria at pressures above 4 GPa |
| title_sort | water carbon dioxide solid phase equilibria at pressures above 4 gpa |
| url | https://doi.org/10.1038/s41598-017-00915-0 |
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