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Title: Low temperature heat capacity and thermodynamic functions of anion bearing sodalites Na8Al6Si6O24X2 (X = SO4, ReO4, Cl, I)

Journal Article · · Journal of Chemical Thermodynamics
 [1];  [2];  [3];  [2];  [4];  [1];  [2]
  1. Brigham Young Univ., Provo, UT (United States)
  2. Univ. of California, Davis, CA (United States). Peter A. Rock Thermochemistry Lab.
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)

Heat capacities of sulfate, perrhenate, chloride, and iodide sodalites with the ideal formula Na8Al6Si6O24X2 (X = SO4, ReO4, Cl, I) were measured from 2 K to 300 K using a Quantum Design Physical Property Measurement System (PPMS). From the heat capacity data, the standard thermodynamic functions were determined. All four sodalites undergo a phase transition below room temperature for which thermodynamic parameters were determined. Additionally, the heat capacity of one of the constituent compounds (NaReO4) was measured.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
Sponsoring Organization:
USDOE Office of Environmental Management (EM)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1361348
Alternate ID(s):
OSTI ID: 1550146
Journal Information:
Journal of Chemical Thermodynamics, Vol. 114; ISSN 0021-9614
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 6 works
Citation information provided by
Web of Science

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Cited By (1)

Perrhenate sodalite growth from alkali silicate melts by noble metal catalysis journal March 2019