Computer-assisted evaluation of the thermochemical data of the compounds of thorium

Technical Report · Mon Aug 01 04:00:00 EDT 1977

DOI:https://doi.org/10.2172/6786402· OSTI ID:6786402

Wagman, D. D.; Schumm, R. H.; Parker, V. B.

Selected values are given for the thermochemical properties of the compounds of thorium. They are obtained from a computer-assisted least sums-least squares approach to the evaluation of thermodynamic data networks. The properties given, where data are available, are enthalpy of formation, Gibbs energy of formation, and entropy at 298.15 K (..delta.. Hf (298), ..delta.. Gf (298), and S (298)). The values are consistent with the CODATA Key Values for Thermodynamics. The reaction catalog from which this self consistent set of values is generated is given with a statistical analysis. Some thermal functions are also given, as well as detailed comments when necessary.

• Research Organization: National Bureau of Standards, Washington, D.C. (USA); International Atomic Energy Agency, Vienna (Austria)
• OSTI ID: 6786402
• Report Number(s): PB--273171; NBSIR--77-1300
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDE COMPOUNDS
ENERGY
ENTHALPY
ENTROPY
FORMATION FREE ENTHALPY
FORMATION HEAT
FREE ENTHALPY
MEDIUM TEMPERATURE
PHYSICAL PROPERTIES
REACTION HEAT
THERMODYNAMIC PROPERTIES
THORIUM COMPOUNDS