Solvent extraction of europium(III) with crown ethers and picrate ions

Journal Article · Sat Dec 31 23:00:00 EST 1983 · Solvent Extr. Ion Exch.; (United States)

DOI:https://doi.org/10.1080/07366298408918458· OSTI ID:6357211

Hasegawa, Y; Haruna, S

The extraction of europium(III) with 15-crown-5 (15C5), benzo-15-crown-5 (B15C5), 18-crown-6 (18C6) or dibenzo-18-crown-6(DB18C6) and picrate anion into chloroform was measured at 25/sup 0/C. The stoichiometry in the species extracted was determined to be 1:2:3 with respect to europium(III), each crown ether employed and picrate ion. The extraction constants defined as K/sub ex/ = ((EuE/sub 2/A/sub 3/)/sub o//(Eu/sup 3 +/)/sub a/ x(E)/sub a//sup -2/ (A/sup -/)/sub a//sup -3/ were measured to be 10/sup 8.2/, 10/sup 11.1/, 10/sup 8.5/, and 10/sup 13.3/ for 15C5, B15C5, 18C6, and DB18C6, successively. 11 references, 2 figures, 1 table.

• Research Organization: Science Univ. of Tokyo, Kagurazaka, Japan
• OSTI ID: 6357211
• Journal Information: Solvent Extr. Ion Exch.; (United States), Journal Name: Solvent Extr. Ion Exch.; (United States) Vol. 2:3; ISSN SEIED
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ALCOHOLS
CARBOXYLIC ACID SALTS
CHLORINATED ALIPHATIC HYDROCARBONS
CHLOROFORM
COMPARATIVE EVALUATIONS
DATA
DATA ANALYSIS
DISTRIBUTION FUNCTIONS
ELEMENTS
EUROPIUM
EXPERIMENTAL DATA
EXTRACTION
FUNCTIONS
GLYCOLS
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROXY COMPOUNDS
INFORMATION
MEDIUM TEMPERATURE
METALS
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
POLYETHYLENE GLYCOLS
POLYMERS
RARE EARTHS
SEPARATION PROCESSES
SOLVENT EXTRACTION
STOICHIOMETRY