Extension of the WIPP Oxidation State Analog Models to Elevated Temperatures Under Reducing Conditions
Abstract not provided.
Publications
Search results
Jump to search filtersExtension of the WIPP Actinide Oxidation State Analog Models to Elevated Temperatures Under Reducing Conditions
Abstract not provided.
High Temperature Aqueous Chemistry
Abstract not provided.
Computer Modeling of Chemical and Geochemical Processes in High Ionic Strength Solutions
Abstract not provided.
Speciation and Solubility of Aluminum in High Ionic Strength Solutions at Elevated Temperatures to 250 oC
Abstract not provided.
A Thermodynamic Model for Na-Mg-B(OH)3-HCO3-CO3-Cl-SO4 System to High Ionic Strengths
Abstract not provided.
Speciation and solubility of thallium in low temperature systems: Additional aqueous and solid thallium species potentially important in soil environments
Speciation Studies in Soil, Sediment and Environmental Samples
Thallium has numerous applications in industry. It is also of great environmental concern because of its high toxicity. Therefore, stabilities of its aqueous and solid species under low temperature environments are fundamentally important to its impact on environments. In previous publications (Xiong 2007, 2009), a number of aqueous and solid thallium species and their stabilities were addressed. However, several thallium species that are potentially important to soil environments, especially saline soil environments, have not been covered.
Experimental Determination of Solubilities of Sodium Tetraborate (Borax) in NaCl Solutions and A Thermodynamic Model for the Na-B(OH)3-Cl-SO4 System to High Ionic Strengths at 25 oC
Proposed for publication in American Mineralogist.
Abstract not provided.
Experimental Determination of Solubilities of Sodium Tetraborate (Borax) in NaCl Solutions to High Ionic Strengths and Thermodynamic Model for the Na-B(OH)3-Cl-SO4 System
Abstract not provided.
Experimental determination of solubilities of lead oxalate (PbC2O4(cr)) in a NaCl medium to high ionic strengths and the importance of lead oxalate in low temperature environments
Geochimica et Cosmochimica Acta
Abstract not provided.
Experimental determination of solubilities of sodium tetraborate (Borax) in NaCl solutions to high ionic strengths, and thermodynamics of NaB(OH)4(aq)
Abstract not provided.
Thermodynamic Modeling of Trivalent Am Cm and Eu-Citrate Complexation in Concentrated NaClO4 Media
Radiochimica Acta
Abstract not provided.
Experimental determination of solubility constant of hydromagnesite (5424) in NaCl solutions up to 4.4m at room temperature
Chemical Geology
This study reports the solubility constants of both synthetic and natural hydromagnesite (5424) determined in NaCl solutions with a wide range of ionic strength regarding the following reaction:. Mg5(CO3)4(OH)2.4H2O (cr)+10H+⇆5Mg2++4CO2(g)+10H2O(l)Solubility experiments were conducted from undersaturation in deionized water and 0.10-4.4m NaCl solutions at PCO2 of 10-3.4atm and 22.5°C, and lasting up to 1870days. Based on the specific interaction theory, the weighted average solubility constant at infinite dilution calculated from the experimental results in 0.10-3.2m NaCl solutions using the natural hydromagnesite (5424) from Staten Island, New York, is 58.39±0.40 (2σ) in logarithmic units at 22.5°C with a corresponding value of 57.93±0.40 (2σ) at 25°C. Similarly, the weighted average solubility constant using the natural hydromagnesite (5424) from Gabbs, Nevada, is 59.54±0.72 (2σ) in logarithmic units at 22.5°C with a corresponding value of 59.07±0.72 (2σ) at 25°C. The weighted average solubility constant of synthetic hydromagnesite (5424) determined from experiments in 0.10-4.4m NaCl solutions is 61.53±0.59 (2σ) in logarithmic units at 22.5°C with a corresponding value of 61.04±0.59 (2σ) at 25°C. The natural hydromagnesite has lower solubilities because of its higher crystallinity related to their origins than synthetic hydromagnesite. The solubility constant of synthetic hydromagnesite is about one order of magnitude lower than the literature values. The Gibbs free energies of formation at the reference state (25°C, 1bar) are -5896±2kJmol-1, -5889±4kJmol-1, and -5,878±3kJmol-1 for the natural hydromagnesite from Staten Island, New York, from Gabbs, Nevada, and for the synthetic hydromagnesite, respectively. © 2011 Elsevier B.V.
Complexation of Am3+ Cm3+ and Eu3+ with EDTA at varying Ionic Strength
Abstract not provided.
Prediction of Formation Constants of NdHB4O72+ up to 200 Degrees Celsius
Abstract not provided.
Use of Iron-Base Waste Packages in a Salt Repository
Abstract not provided.
Overview of WIPP Geochemical Modeling
Abstract not provided.
Experimental Determination of Solubility constant of Hydromagnesite (5424) in NaCI Solutions up to 4.4 m at Room Temperature
Chemical Geology
Abstract not provided.
Solubility of FeC2O4ܨH2O in MgCl2 and NaCl Solutions
Abstract not provided.
EXPERIMENTAL DETERMINATION OF SOLUBILITY CONSTANT OF EARLANDITE (Ca3[C3H5O(COO)3]2*4H2O) AND PITZER INTERACTION PARAMETERS OF CaC3H5O(COO)3- IN NaCl-H2O AND MgCl2-H2O SYSTEMS
Abstract not provided.
Solubility of FeC2O4ܨH2O and PbC2O4 in MgCl2 and NaCl Solution
Abstract not provided.
5414329630 Solubility of Fe2(OH)3Cl (Pure-Iron End-Member of Hibbingite) in NaCl and Na2SO4 Brines
Chemical Geology
Abstract not provided.
Overview of WIPP Geochemical Modeling
Abstract not provided.
Solubility of Fe2(OH)3Cl (Pure-Iron End-Member of Hibbingite) in NaCl and Na2SO4 Brines
Chemical Geology
Abstract not provided.
Complexation of Nd(III) with tetraborate ion and its effect on actinide (III) solubility in WIPP brine
Proposed for publication in Radiochimica Acta.
Abstract not provided.
Results 101–125 of 134