Solubility products and thermodynamic functions for the lanthanum fluoride-water systems. Progress report, March 1, 1985-April 20, 1986

Technical Report · Sat May 24 04:00:00 UTC 1986

OSTI ID:5816169

Menon, M P

All of the work including the measurement of the solubility, solubility product and thermodynamic functions using conductometric, potentiometric and radiometric techniques on the first three systems have been completed. In addition, ''the equilibrium solubility model'' we have developed for complexation studies and included in our previous report has been tested with saturated solutions of labeled CeF/sub 3/ and LaF/sub 3/ containing excess of labeled lanthanons and fluoride. The radioisotopes used for this work as well as for the solubility studies are 32-d /sup 141/Ce and 40-h /sup 140/La, respectively. After the separation of the precipitate from the aqueous phase by centrifugation of saturated solutions, the total concentration of the lanthanon was measured radiometrically while that of free fluoride was determined using potentiometric technique. 2 refs., 3 figs., 4 tabs.

• Research Organization: Savannah State Coll., GA (USA). Dept. of Chemistry
• DOE Contract Number: FG09-84SR14014
• OSTI ID: 5816169
• Report Number(s): DOE/SR/14014-2; ON: DE86011449
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400103 -- Radiometric & Radiochemical Procedures-- (-1987)
400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CERIUM 141
CERIUM COMPOUNDS
CERIUM FLUORIDES
CERIUM ISOTOPES
DATA
DAYS LIVING RADIOISOTOPES
ELEMENTS
ENERGY
ENTHALPY
ENTROPY
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
FLUORIDES
FLUORINE COMPOUNDS
FREE ENTHALPY
GADOLINIUM COMPOUNDS
GADOLINIUM FLUORIDES
HALIDES
HALOGEN COMPOUNDS
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOTOPES
LANTHANUM 140
LANTHANUM COMPOUNDS
LANTHANUM FLUORIDES
LANTHANUM ISOTOPES
METALS
NEODYMIUM
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
PH VALUE
PHYSICAL PROPERTIES
RADIOISOTOPES
RARE EARTH COMPOUNDS
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
RARE EARTHS
SAMARIUM COMPOUNDS
SAMARIUM FLUORIDES
SOLUBILITY
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES