Articles | Volume 37, issue 1
https://doi.org/10.5194/ejm-37-111-2025
https://doi.org/10.5194/ejm-37-111-2025
Research article
 | 
26 Feb 2025
Research article |  | 26 Feb 2025

Tungsten solubility and speciation in hydrothermal solutions revealed by in situ X-ray absorption spectroscopy

Manuela Borchert, Maria A. Kokh, Marion Louvel, Elena F. Bazarkina, Anselm Loges, Edmund Welter, Denis Testemale, Rami Al Abed, Stephan Klemme, and Max Wilke

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Cited articles

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Bianconi, A., DelliìAriccia, M., Gargano, A., and Natoli, C. R.: Bond length determination using XANES, in: EXAFS and Near Edge Structure, edited by: Bianconi, A., Incoccia, L., and Stilpcich, S., Springer Series in Chemistry and Physics, Berlin, 27, 57–61, 1983. 
Borchert, M., Kokh, M. A., Louvel, M., Bazarkina, E. F., Loges, A., Testemale, D., Al Abed, R., Klemme, S., and Wilke, M.: Tungsten concentrations and tungsten EXAFS and XANES data in hydrothermal solutions, GFZ Data Services [data set], https://doi.org/10.5880/fidgeo.d.2024.002, 2024. 
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Short summary
Tungsten (W) concentrations in fluids in equilibrium with crystalline tungsten oxide are used to improve constraints of thermodynamic parameters for W solubility. W species in the hydrothermal fluids are further characterized by X-ray spectroscopy. Improved thermodynamic properties for a set of W fluid species are provided that cover a wide range of fluid compositions, necessary for understanding and describing the complex processes of W enrichment and mineralization in hydrothermal systems.
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