DETERMINATION OF RARE EARTH IMPURITIES IN THORIUM BY SPECTROGRAPHIC METHODS
Technical Report
·
OSTI ID:4339618
A method for determining rare earth impurities in Th in the fractional ppm range is described. Refore spectrographic examination is possible, the impurities must be freed from the Th matrix. This is accomplished by removing the bulk of the Th by extraction with TBP--CCl/sub 4/ and the remainder by extraction with TTA--C/sub 6/H/sub 6/. This results in a consistent recovery of rare earths of about 85% with an average sensitivity of 0.2 ppm. The experimental error is within 10%. Retails of the procedure are given together with working curves for the major neutron absorbing rare earths; i.e. Dy, Eu, Gd, and Sm. (auth)
- Research Organization:
- Atomic Energy of Canada Ltd. Chalk River Project, Chalk River, Ont.
- NSA Number:
- NSA-12-005231
- OSTI ID:
- 4339618
- Report Number(s):
- CRDC-742; AECL-546
- Country of Publication:
- Canada
- Language:
- English
Similar Records
Separation and Spectrographic Determination of Rare Earths in Uranium; SEPARACAO E DETERMINACAO ESPECTROGRAFICA DE TERRAS RARAS EM URANIO
SEPARATION AND SPECTROPHOTOMETRIC AND SPECTROGRAPHIC DETERMINATION OF SOME RARE EARTHS IN URANIUM COMPOUNDS
Separation and Spectrophotometric and Spectrographic Determination of Rare Earths in Uranium Compounds; SEPARAZIONE E DETERMINAZIONE SPETTROFOTOMETRICA E SPETTROGRAFICA DI TERRE RARE IN COMPOSIT DI URANIO
Technical Report
·
Tue Oct 31 23:00:00 EST 1961
·
OSTI ID:4791521
SEPARATION AND SPECTROPHOTOMETRIC AND SPECTROGRAPHIC DETERMINATION OF SOME RARE EARTHS IN URANIUM COMPOUNDS
Journal Article
·
Wed Aug 01 00:00:00 EDT 1962
· Met. ital.
·
OSTI ID:4754100
Separation and Spectrophotometric and Spectrographic Determination of Rare Earths in Uranium Compounds; SEPARAZIONE E DETERMINAZIONE SPETTROFOTOMETRICA E SPETTROGRAFICA DI TERRE RARE IN COMPOSIT DI URANIO
Technical Report
·
Sat Mar 31 23:00:00 EST 1962
·
OSTI ID:4828368
Related Subjects
ABSORPTION
ACETONE
BENZENE
BUTYL PHOSPHATES
CARBON TETRACHLORIDE
CHEMISTRY
DIAGRAMS
DYSPROSIUM
ERRORS
EUROPIUM
GADOLINIUM
IMPURITIES
KETONES
NEUTRONS
ORGANIC FLUORINE COMPOUNDS
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
RARE EARTHS
RECORDING SYSTEMS
RECOVERY
SAMARIUM
SEPARATION PROCESSES
SOLVENT EXTRACTION
SPECTROSCOPY
THORIUM
TRACE AMOUNTS
TTA
ACETONE
BENZENE
BUTYL PHOSPHATES
CARBON TETRACHLORIDE
CHEMISTRY
DIAGRAMS
DYSPROSIUM
ERRORS
EUROPIUM
GADOLINIUM
IMPURITIES
KETONES
NEUTRONS
ORGANIC FLUORINE COMPOUNDS
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
RARE EARTHS
RECORDING SYSTEMS
RECOVERY
SAMARIUM
SEPARATION PROCESSES
SOLVENT EXTRACTION
SPECTROSCOPY
THORIUM
TRACE AMOUNTS
TTA