Aqueous speciation of cadmium chloride in supercritical hydrothermal solutions at 500 and 600°C under 0.5 and 1 kbar

Etsuo Uchida, Ryo Inoue, Koichi Ogiso

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1 Citation (Scopus)

Abstract

Aqueous speciation of cadmium in 2 M chloride solutions was determined at 500 and 600°C, 1 kbar and 600°C, 0.5 kbar in the system CaTiO3-CdTiO3-CaCl2-CdCl2-NaCl-H2O using the same experimental method as Uchida et al. (1998). Thermodynamic analysis of the experimental results gives 1.3, 2.3 and 2.9 for the logarithm of the stepwise formation constant of tri-chloro cadmium complex at 500 and 600°C, 1 kbar and 600°C, 0.5 kbar, respectively. The formation constant increases with increasing temperature and decreasing pressure.

Original languageEnglish
Pages (from-to)339-344
Number of pages6
JournalGEOCHEMICAL JOURNAL
Volume32
Issue number5
DOIs
Publication statusPublished - 1998 Jan 1

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

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