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THE ELECTRICAL CONDUCTIVITY OF SOLUTIONS OF METALS IN THEIR MOLTEN HALIDES. VII. RARE EARTH METAL SYSTEMS. ELECTRON EXCHANGE BETWEEN ADJACENT OXIDATION STATES

Journal Article · · Journal of Physical Chemistry (U.S.)
DOI:https://doi.org/10.1021/j100806a049· OSTI ID:4121987
; ;
The electrical conductivities of solutions of the series La, Pr, and Nd in their molten tribromides are similar to those of the corresponding chloride and iodide systems. The rapid increase in conductivity with metal concentration in the La solutions indicates the occurrence of considerable electronic conductance; in a solution of 10% La metal, as high as nine times the ionic conductance. The Nd solutions show little if any electronic conductance, while the Pr solutions are again intermediate. Solutions of Gd, Dy, Ho, and Er in their molten trichlorides behave irregalarly both in regard to solubility and electrical conductance. A maximum in conductance near 50 mole% MX/sub 2/ dissolved in MX/sub 3/ was found in NdBr/sub 3/--NdBr/sub 2/ as it had been in Ndl/sub 3/Ndl/sub 2/, and positive deviation from additivity was obtained in and positive deviation together with their absence in the systems NdCl/sub 3/- SrCl/ sub j2/ and Ndl/sub 3/- SrI/sub 2/ support an earlier explanat ion based on electron exchange between adjacent oxidation states (Nd/sup 3+/ - Nd/sup 2+/, Dy/ sup 3+/-Dy/sup 2+/). (auth)
Research Organization:
Oak Ridge National Lab., Tenn.
Sponsoring Organization:
USDOE
NSA Number:
NSA-18-005282
OSTI ID:
4121987
Journal Information:
Journal of Physical Chemistry (U.S.), Journal Name: Journal of Physical Chemistry (U.S.) Vol. Vol: 67; ISSN JPCHA
Country of Publication:
Country unknown/Code not available
Language:
English

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Related Subjects

CHEMISTRY
DYSPROSIUM
DYSPROSIUM CHLORIDES
ELECTRIC CONDUCTIVITY
ERBIUM
ERBIUM CHLORIDES
FUSED SALTS
GADOLINIUM
GADOLINIUM CHLORIDES
HOLMIUM
HOLMIUM CHLORIDES
LANTHANUM
LANTHANUM BROMIDES
NEODYMIUM
NEODYMIUM BROMIDES
PRASEODYMIUM
PRASEODYMIUM BROMIDES
SOLUBILITY
SOLUTIONS