Thermodynamic tables for nuclear waste isolation reference values and neptunium

Conference · Wed Jul 01 00:00:00 EDT 1987

OSTI ID:6163447

Phillips, S L; Hale, F V

A consistent tabulation of thermodynamic values for neptunium is given. The table consists of values of Gibbs energy of formation, enthalpy of formation, entropy and heat capacity for substances of geochemical interest. The table is consistent with CODATA values and data from other sources; reproduces critically evaluated experimental data; and, is consistent with the relationship ..delta../sub r/ G/sup 0/ = ..delta../sub r/ H/sup 0/ - 298.15 ..delta../sub r/ S/sup 0/ within defined limits. Important gaps in the data were filled by calculations based on correlations. Selected equilibrium constants and standard potentials were calculated and compared with other work.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6163447
• Report Number(s): LBL-23733; CONF-870594-2; ON: DE88000190
• Country of Publication: United States
• Language: English

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38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
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Terrestrial-- Radioactive Materials Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACTINIDES
AQUEOUS SOLUTIONS
DISPERSIONS
ELEMENTS
ENERGY
ENTROPY
ENVIRONMENTAL TRANSPORT
FORMATION FREE ENTHALPY
FREE ENTHALPY
GROUND WATER
HYDROGEN COMPOUNDS
MANAGEMENT
MASS TRANSFER
MATERIALS
METALS
MIXTURES
NEPTUNIUM
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTES
RADIONUCLIDE MIGRATION
SOLUBILITY
SOLUTIONS
SOLVATION
SPECIFIC HEAT
TABLES
TEMPERATURE EFFECTS
THERMODYNAMIC PROPERTIES
TRANSURANIUM ELEMENTS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
WATER