New approaches to the study of lanthanide/actinide chloride: aluminum chloride vapor phase complexes
Conference
·
OSTI ID:6013344
The spectrophotometric technique for vapor density measurements of complexed metal ions has been reformulated to account for temperature dependent effects and multi-species systems. Analysis of vapor pressure information indicates that the NdCl/sub 3/--AlCl/sub 3/ and HoCl/sub 3/--AlCl/sub 3/ systems are adequately explained by the existence of three vapor species. The two higher molecular weight complexes LnAl/sub 4/Cl/sub 15/ and LnAl/sub 3/Cl/sub 12/ were first proposed by Oeye and Gruen. The newly identified higher temperature species, HoAl/sub 2/Cl/sub 9/, contributes significantly to the vapor density above 750/sup 0/K and below 3 atm of dimer pressure. In view of the consistency of the Nd/sup +3/ and Ho/sup +3/ chemistry the data for the Sm/sup +3/ system should be viewed with reservation. A new method for vapor density measurements involving use of radioactive tracers has been discussed in terms of its applicability to the study of (Ln,An)Cl/sub 3/(AlCl/sub 3/)/sub x/ systems.
- Research Organization:
- Argonne National Lab., IL (USA)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6013344
- Report Number(s):
- CONF-790641--8
- Country of Publication:
- United States
- Language:
- English
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· Inorganic Chemistry
·
OSTI ID:20017282
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
ACTINIDE COMPLEXES
ALUMINIUM CHLORIDES
ALUMINIUM COMPOUNDS
CHLORIDES
CHLORINE COMPOUNDS
COMPLEXES
FLUIDS
GASES
HALIDES
HALOGEN COMPOUNDS
HOLMIUM CHLORIDES
HOLMIUM COMPOUNDS
NEODYMIUM CHLORIDES
NEODYMIUM COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
RARE EARTH COMPLEXES
RARE EARTH COMPOUNDS
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
VAPOR PRESSURE
VAPORS
400201* -- Chemical & Physicochemical Properties
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
ACTINIDE COMPLEXES
ALUMINIUM CHLORIDES
ALUMINIUM COMPOUNDS
CHLORIDES
CHLORINE COMPOUNDS
COMPLEXES
FLUIDS
GASES
HALIDES
HALOGEN COMPOUNDS
HOLMIUM CHLORIDES
HOLMIUM COMPOUNDS
NEODYMIUM CHLORIDES
NEODYMIUM COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
RARE EARTH COMPLEXES
RARE EARTH COMPOUNDS
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
VAPOR PRESSURE
VAPORS