The extraction-quench technique for determination of the thermodynamic properties of solute complexes; application to quartz solubility in fluid mixtures

Hydration state, charge and chemical stoichiometry, and Gibbs free energy of aqueous species.A hydrothermal apparatus, capable of obtaining the necessary solubility data in fluid mixtures, is described. Stoichiometry of the dominant aqueous silica species of Si(OH)4 · 2H2O in the supercritical regio...

Full description

Saved in:
Bibliographic Details
Published inThe American mineralogist Vol. 68; no. 7-8; pp. 731 - 741
Main Authors Walther, John V, Orville, Philip M
Format Journal Article
LanguageEnglish
Published Mineralogical Society of America 01.08.1983
Subjects
CaO-MgO-SiO2-HCl-CO2-H2O
experimental studies
fluid phase
framework silicates
free energy
geochemistry
Geophysics
hydration
hydrothermal conditions
instruments
metamorphic rocks
P-T conditions
phase equilibria
properties
quartz
related to mantle
silica minerals
silicates
solid phase
solubility
solutes
stoichiometry
techniques
thermodynamic properties
Online AccessGet full text

Cover

More Information
Summary:Hydration state, charge and chemical stoichiometry, and Gibbs free energy of aqueous species.A hydrothermal apparatus, capable of obtaining the necessary solubility data in fluid mixtures, is described. Stoichiometry of the dominant aqueous silica species of Si(OH)4 · 2H2O in the supercritical region of H2O. Prediction of silica concentrations in CO2-H2O mixtures in the system CaO-MgO-SiO2-HCl-CO2-H2O at 2 kbar and 450°C.—Modified journal abstract.
ISSN:0003-004X
1945-3027