ISSN:
1573-1111
Keywords:
Crown ethers
;
nitrobenzene
;
plutonium (IV)
;
solvent extraction
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Ion-pair extraction behaviour of plutonium (IV) from varying concentrations of HCl solution was studied employing crown ethers (benzo-l5-crown-5 (B15C5), 18-crown-6, (18C6), dibenzo-18-crown-6 (DB18C6), dicyclohexano-18-crown-6, (DC18C6), dibenzo-24-crown-8 (DB24C8) and dicyclohexano-24-crown-8 (DCH24C8)) in nitrobenzene as the extractant. Ammonium metavanidate was used as the holding oxidant in the aqueous phase and the conditions necessary for the quantitative extraction of the tetravalent ion were found. The co-extraction of species of the type [HL+].[HPu(Cl) 6 − ] and [HL+]2·[Pu(Cl) 6 2− ] as ion-pairs (where L represents the crown ether) is suggested.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01044996
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