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FREEZING POINT DEPRESSIONS IN SODIUM FLUORIDE. II. EFFECT OF TETRAVALENT FLUORIDES

Journal Article · · Journal of Physical Chemistry
DOI:https://doi.org/10.1021/j100818a506· OSTI ID:4752393

The freezing point depressions in NaF caused by ZrF₄, HfF₄, ThF₄, and UF₄ were measured and the excess partial molal free energies of solution of NaF calculated therefrom. All the deviations from ideal solution behavior were negative and greater than these for alkaline earth fluoride solutes. It was found that the deviations increase with the tetravalent cation radius, and this fact is ascribed to steric effects. The freezing point of NaF containing two solutes was also studied, and a synergistic effect was found for solute concentrations of 15 mole %. (D.L.C.)

Research Organization:
Oak Ridge National Lab., Tenn.
Sponsoring Organization:
USDOE
NSA Number:
NSA-17-006088
OSTI ID:
4752393
Journal Information:
Journal of Physical Chemistry, Journal Name: Journal of Physical Chemistry Journal Issue: 12 Vol. 66; ISSN 0022-3654
Country of Publication:
Country unknown/Code not available
Language:
English