Accession Number : ADD095346

Title :   The Thermochemical Properties of the Uranium-Halogen Containing Compounds.

Descriptive Note : Interim rept.,

Corporate Author : NATIONAL STANDARD REFERENCE DATA SYSTEM

Personal Author(s) : Parker, Vivian B

Report Date : Jul 1980

Pagination or Media Count : 170

Abstract : A detailed analysis and evaluation of the thermochemistry of 142 uranium-halogen containing compounds is presented, and a tabular summary of the thermochemical properties is given. The properties given, where data are available, are the enthalpy of formation, delta Hf degrees, Gibbs energy of formation, delta Gf degrees, entropy, S degrees, heat capacity, CP degrees, and the enthalpy difference, (H-HO0, all at temperature 298.15 K, and the enthalpy of formation at O K, delta Hf degrees O. The values are consistent with the CODATA Key Values for Thermodynamics. The analysis of the uranium-halogen containing compounds includes some vapor pressure equations and Cp equations. Some thermal functions which are not readily available in the accessible open literature are presented in the Appendix for compounds that required their use. The tabular summary of delta Hf deg, delta Gf deg, etc. includes the values for those uranium compounds which were necessary for this evaluation. (Author)

Descriptors :   *URANIUM COMPOUNDS, *HALOGEN COMPOUNDS, *THERMOCHEMISTRY, *THERMODYNAMIC PROPERTIES, ENTHALPY, HEAT OF FORMATION, FREE ENERGY, ENTROPY, SPECIFIC HEAT, TEMPERATURE, VAPOR PRESSURE, TABLES(DATA)

Subject Categories : Inorganic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE