Atom-at-a-time radiochemical separations of the heaviest elements: Lawrencium chemistry

Technical Report · Wed Apr 01 00:00:00 EST 1987

DOI:https://doi.org/10.2172/6558297· OSTI ID:6558297

Hoffman, D C; Henderson, R A; Gregorich, K E; Bennett, D A; Chasteler, R M; Gannett, C M; Hall, H L; Lee, D M; Nurmia, M J; Silva, R J

The isotope /sup 260/Lr produced in reactions of /sup 18/O with /sup 249/Bk was used to perform chemical experiments on lawrencium to learn more about its chemical properties. These experiments involved extractions with thenoyl trifluoroacetate (TTA), ammonium alpha-hydroxyisobutyrate (HIB) elution from a cation exchange resin column, and reverse-phase chromatography using hydrogen di(2-ethylhexyl)orthophosphoric acid (HDEHP) to investigate the chemical properties of Lr. The results from the HIB elutions also give information about the ionic radius of Lr(III) which was found to elute very close to Er. An attempt to reduce Lr(III) was also made.

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6558297
• Report Number(s): LBL-23367; CONF-870430-7; ON: DE87010258
• Resource Relation: Conference: International conference on methods and applications of radioanalytical chemistry, Kona, HI, USA, 5 Apr 1987; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
LAWRENCIUM
CHEMICAL PROPERTIES
BERKELIUM 249
ISOTOPE PRODUCTION
LAWRENCIUM 260
OXYGEN 18 REACTIONS
SOLVENT EXTRACTION
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ACTINIDES
ALPHA DECAY RADIOISOTOPES
BERKELIUM ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
DAYS LIVING RADIOISOTOPES
ELEMENTS
EXTRACTION
HEAVY ION REACTIONS
HEAVY NUCLEI
ISOTOPES
LAWRENCIUM ISOTOPES
METALS
MINUTES LIVING RADIOISOTOPES
NUCLEAR REACTIONS
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
RADIOISOTOPES
SEPARATION PROCESSES
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM ELEMENTS
400700* - Radiochemistry & Nuclear Chemistry