Determination of the stability constants of a number of metal fluoride complexes and their rates of formation

Technical Report · Wed Aug 01 00:00:00 EDT 1979

DOI:https://doi.org/10.2172/5947576· OSTI ID:5947576

Hammer, R. R.

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; TRN: 79-020865
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
ALUMINIUM COMPLEXES
STABILITY
CHROMIUM COMPLEXES
FLUOROBORATES
GADOLINIUM COMPLEXES
IRON COMPLEXES
NIOBIUM COMPLEXES
URANYL COMPLEXES
ZIRCONIUM COMPLEXES
AQUEOUS SOLUTIONS
BORIC ACID
CHEMICAL REACTION YIELD
COMPLEXES
FLUORIDES
HYDROFLUORIC ACID
NITRIC ACID
TEMPERATURE DEPENDENCE
ACTINIDE COMPLEXES
BORON COMPOUNDS
DISPERSIONS
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MIXTURES
RARE EARTH COMPLEXES
SOLUTIONS
TRANSITION ELEMENT COMPLEXES
URANIUM COMPLEXES
YIELDS
400201* - Chemical & Physicochemical Properties
400702 - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials