Determination of the stability constants of a number of metal fluoride complexes and their rates of formation
The stability constants of the fluoride complexes of Al/sup +3/, H/sub 3/BO/sub 3/, Cr/sup +3/, Cr/sup +6/, Fe/sup +3/, Gd/sup +3/, Nb/sup +5/, UO/sub 2//sup +2/, and Zr/sup +4/ were determined in 0.96 and 2.88 M HNO/sub 3/ solutions in the temperature range 25 to 60/sup 0/C with a fluoride specific ion electrode. These data can be used to calculate the concentration of chemical species in solution and will be used to correlate solution properties with solution composition. The solubilities of some fluoride precipitates were also measured in nitric acid solutions. The rates of formation of the fluoborates, aluminum fluoride, and zirconium fluoride complexes were measured with a fluoride specific ion electrode at 25, 35, and 45/sup 0/C. The rates of formation of all complexes, except BF/sub 4//sup -/, AlF/sup +2/, and a fluoride complex with aluminum containing more than three fluorides associated with it, were too fast to measure with the instrumentation used.
- Research Organization:
- Exxon Nuclear Idaho Co., Inc., Idaho Falls (USA)
- DOE Contract Number:
- AC07-79ID01675
- OSTI ID:
- 5947576
- Report Number(s):
- ENICO-1004
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400702 -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDE COMPLEXES
ALUMINIUM COMPLEXES
AQUEOUS SOLUTIONS
BORIC ACID
BORON COMPOUNDS
CHEMICAL REACTION YIELD
CHROMIUM COMPLEXES
COMPLEXES
DISPERSIONS
FLUORIDES
FLUORINE COMPOUNDS
FLUOROBORATES
GADOLINIUM COMPLEXES
HALIDES
HALOGEN COMPOUNDS
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
IRON COMPLEXES
MIXTURES
NIOBIUM COMPLEXES
NITRIC ACID
RARE EARTH COMPLEXES
SOLUTIONS
STABILITY
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPLEXES
URANIUM COMPLEXES
URANYL COMPLEXES
YIELDS
ZIRCONIUM COMPLEXES