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A New Method for the Prediction of Gibbs Free Energies of Formation of Hydrated Clay Minerals Based on the Electronegativity Scale
Beidellite Exchangeable Cations Gibbs Free Energies of Formation Hectorite Hydration Illite Montmorillonite Nontronite
2011/12/6
Abstract: A new method for the prediction of Gibbs free energies of formation for hydrated clay minerals is proposed based on the parameter ΔGO= Mz+(clay) characterizing the oxygen affinity of the cat...
The Gibbs free energies and enthalpies of formation of U6+ phases: An empirical method of prediction (v. 84, 650-664,1999)
Gibbs free enthalpies of formation empirical method prediction U6+ phases
2012/3/31
Uranyl minerals form as a result of the oxidation and alteration of uraninite, UO . These uranyl2+xin used nuclear fuels under
phases are also important alteration products of the corrosion of UO
ox...
The Gibbs free energies and enthalpies of formation of U6+ phases: An empirical method of prediction
oxidation and alteration of uraninite empirical method prediction U6+ phases
2012/3/31
Uranyl minerals form as a result of the oxidation and alteration of uraninite, UO . These uranyl
in used nuclear fuels under
phases are also important alteration products of the corrosion of UO
oxi...
Gibbs energies of formation for hydrocerussite [Pb(OH)2·(PbCO3)2(s)] and hydrozincite {[Zn(OH)2]3·(ZnCO3)2(s)} at 298 K and 1 bar from electrochemical cell measurements
Gibbs energies hydrocerussite [Pb(OH)2·(PbCO3)2(s)] hydrozincite {[Zn(OH)2]3·(ZnCO3)2(s)} electrochemical cell measurements
2012/3/31
New values are reported for the Gibbs energies of formation from the elements for hydrocerussite Pb(OH)2·(PbCO3)2 and hydrozincite [Zn(OH)2]3·(ZnCO3)2. These D values 0 G f were obtained from electroc...
Phase equilibria in the system CaO-CoO-SiO2 and Gibbs energies of formation of the quaternary oxides CaCoSi2O6, Ca2CoSi2O7, and CaCoSiO4
Phase equilibria CaO-CoO-SiO2 Gibbs energies quaternary oxides CaCoSi2O6 Ca2CoSi2O7 CaCoSiO4
2012/4/6
Phase relations in the pseudoternary system CaO-CoO-Si02 have been established at 1323 K.Three quaternary oxides werefound to be stable: CaCoSi206 withclinopyroxene (Cpx), Ca2CoSi207 with melilite (Me...
Evaluation of Standard Free Energies of Formation of Clay Minerals by an Improved Regression Method
Clay minerals Free energies of formation Regression method
2011/12/29
An improved regression method for the evaluation of standard free energies of formation (ΔG°f) of clay minerals is here proposed in an attempt to remove some of the limitations of the earlier method (...
Free Energies of Formation of Illite Solid Solutions and their Compositional Dependence
Formation Free energy of formation Illite Interstitial water Solid solution Thermodynamics
2011/11/23
Abstract: Electron probe analyses of diagenetic illites in Eocene sandstones from Kettleman North Dome, California, along with analyses of coexisting interstitial waters were used to calculate apparen...
Extrapolation of Aqueous Dissolution Data to Determine Comparative Free Energies of Formation (CΔGfo), and Relative Mineral Stabilities
Dissolution Energy Formation Mineral Solubility Stability
2012/2/10
Analytical data from aqueous dissolution studies of minerals, mineral systems, and naturally equilibrated solutions such as surface waters and groundwaters provide the basic ingredients necessary to c...
Montmorillonite-Organic Complexes—Gas Chromatographic Determination of Energies of Interactions
Montmorillonite Organic Complexes Gas Chromatographic Determination Interactions
2012/2/20
Gas-solid chromatographic measurements of interaction energies were made for the systems ethanol and acetone with K-, Na-, Ba-, and Ca-montmorillonites. The results revealed an increased interaction e...
Interparticle Potential Energies in Na-Montmorillonite Clay Suspensions
Interparticle Potential Energies Na-Montmorillonite Clay Suspensions
2012/2/20
The small angle X-ray scattering data obtained in an earlier investigation of a series of Na-montmorillonite clay samples containing varying concentrations of sodium metaphosphate have been used to ca...