Substoichiometric extraction of cations with mixtures of hexafluoroacetylacetone and tri-n-octylphosphine oxide in cyclohexane

Journal Article · Mon Apr 01 04:00:00 EDT 1974 · Analytical Chemistry

DOI:https://doi.org/10.1021/ac60340a038· OSTI ID:4318443

Mitchell, J. W.; Ganges, Roland.

A new method was developed for substoichiometric extraction of cations by adduct reactions in the presence of excess hexafluoroacetylacetone (HHFA) and of substoichiometric quantities of the neutral donor, tri-n-octylphosphine oxide (TOPO), in cyclohexane. The equilibria of adduct extraction systems are discussed to show advantages over the conventional approach of reacting cations with substoichiometric amounts of chelating ligands. Distribution curves for the substoichiometric extraction of Coil, Cu/sup 2+/, Fe/sup 2+/, Mn/sup 2+/, Zn/sup 2+/, Fe/sup 3+/, Eu/sup 3+/, and Lu/s up 3+/, were measured, and experimental results with relative standard deviations of Cu/sup 2+/, and Eu/sup 3+/ are reported. The general utility of this extraction system for substoichiometric separation of cations following neutron activation is discussed.

• Research Organization: Bell Telephone Labs., Inc., Murray Hill, NJ
• Sponsoring Organization: USDOE
• NSA Number: NSA-29-026563
• OSTI ID: 4318443
• Journal Information: Analytical Chemistry, Journal Name: Analytical Chemistry Journal Issue: 4 Vol. 46; ISSN 0003-2700
• Publisher: American Chemical Society (ACS)
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

*ACTIVATION ANALYSIS
*COBALT-- SOLVENT EXTRACTION
*COPPER-- SOLVENT EXTRACTION
*EUROPIUM-- SOLVENT EXTRACTION
*IRON-- SOLVENT EXTRACTION
*LUTETIUM- - SOLVENT EXTRACTION
*MANGANESE-- SOLVENT EXTRACTION
*ZINC-- SOLVENT EXTRACTION
CATIONS
CYCLOHEXANE
EQUILIBRIUM
KETONES
N40110* --Chemistry--Analytical & Separations Chemistry-- Activation & Nuclear Reaction Procedures
N40140 --Chemistry--Separation Procedures
NEUTRON BEAMS
ORGANIC FLUORINE COMPOUNDS
SUBSTOICHIOMETRY
TOPO