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Solubility of NaFcr in Water at Temperatures of 5‒443°C and the Thermodynamic Properties of F– and NaFaq.

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Title: Solubility of NaFcr in Water at Temperatures of 5‒443°C and the Thermodynamic Properties of F– and NaFaq.
Authors: Tarnopolskaia, M. E.1 (AUTHOR) mashatarnopolskaya@yandex.ru, Reukov, V. L.1 (AUTHOR), Akinfiev, N. N.1 (AUTHOR), Aranovich, L. Y.1 (AUTHOR), Zotov, A. V.1 (AUTHOR)
Source: Doklady Earth Sciences. Feb2025, Vol. 520 Issue 2, p1-5. 5p.
Subject Terms: *Thermodynamics, *Complex fluids, *Water temperature, *Databases, *Solubility
Abstract: The solubility of NaFcr (villiaumite) in water has been experimentally determined for the first time in a wide range of temperatures T = 5‒443°C and pressures P = 1‒1000 bar. At high PT parameters, the solubility is 1.5‒4 times lower than the values predicted by the SUPCRT97 thermodynamic database. Within the HKF model, the thermodynamic properties of NaFaq were estimated and the HKF parameters of the basic ion F–, necessary for describing its properties in the region of elevated (>100°C) temperatures, were significantly refined. The obtained experimental data allow estimating the maximum possible level of the fluorine concentration in hydrothermal alkaline fluids, which is determined by the solubility of NaFcr. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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An: 184385647
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  Data: Solubility of NaF<subscript>cr</subscript> in Water at Temperatures of 5‒443°C and the Thermodynamic Properties of F<superscript>–</superscript> and NaF<subscript>aq</subscript>.
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  Data: <searchLink fieldCode="AR" term="%22Tarnopolskaia%2C+M%2E+E%2E%22">Tarnopolskaia, M. E.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> mashatarnopolskaya@yandex.ru</i><br /><searchLink fieldCode="AR" term="%22Reukov%2C+V%2E+L%2E%22">Reukov, V. L.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Akinfiev%2C+N%2E+N%2E%22">Akinfiev, N. N.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Aranovich%2C+L%2E+Y%2E%22">Aranovich, L. Y.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zotov%2C+A%2E+V%2E%22">Zotov, A. V.</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Doklady+Earth+Sciences%22">Doklady Earth Sciences</searchLink>. Feb2025, Vol. 520 Issue 2, p1-5. 5p.
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  Data: *<searchLink fieldCode="DE" term="%22Thermodynamics%22">Thermodynamics</searchLink><br />*<searchLink fieldCode="DE" term="%22Complex+fluids%22">Complex fluids</searchLink><br />*<searchLink fieldCode="DE" term="%22Water+temperature%22">Water temperature</searchLink><br />*<searchLink fieldCode="DE" term="%22Databases%22">Databases</searchLink><br />*<searchLink fieldCode="DE" term="%22Solubility%22">Solubility</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The solubility of NaFcr (villiaumite) in water has been experimentally determined for the first time in a wide range of temperatures T = 5‒443°C and pressures P = 1‒1000 bar. At high PT parameters, the solubility is 1.5‒4 times lower than the values predicted by the SUPCRT97 thermodynamic database. Within the HKF model, the thermodynamic properties of NaFaq were estimated and the HKF parameters of the basic ion F–, necessary for describing its properties in the region of elevated (>100°C) temperatures, were significantly refined. The obtained experimental data allow estimating the maximum possible level of the fluorine concentration in hydrothermal alkaline fluids, which is determined by the solubility of NaFcr. [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1134/S1028334X24605480
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      – Code: eng
        Text: English
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        PageCount: 5
        StartPage: 1
    Subjects:
      – SubjectFull: Thermodynamics
        Type: general
      – SubjectFull: Complex fluids
        Type: general
      – SubjectFull: Water temperature
        Type: general
      – SubjectFull: Databases
        Type: general
      – SubjectFull: Solubility
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      – TitleFull: Solubility of NaFcr in Water at Temperatures of 5‒443°C and the Thermodynamic Properties of F– and NaFaq.
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            – D: 01
              M: 02
              Text: Feb2025
              Type: published
              Y: 2025
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            – TitleFull: Doklady Earth Sciences
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