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Variation of stability constants of thorium and uranium oxalate complexes with ionic strength

Conference ·
OSTI ID:10113518
; ;  [1]
  1. Florida State Univ., Tallahassee, FL (United States). Dept. of Chemistry

Extraction of Th(IV) and UO{sub 2}{sup 2+} by a solution of TTA and HDEHP, respectively, in toluene was used to obtain stability constants of their oxalate complexes in 1, 3, 5, 7 and 9 M ionic strength (NaClO{sub 2}) solutions. The complexes formed were the MOx, MHOx, MOx{sub 2} and M(HOx){sub 2} (M = Th, UO{sub 2}) species. The values were analyzed by the Specific Interaction Theory and agreed to I {le} 3 M but required an additional term for fitting at I > 3 M.

Research Organization:
Sandia National Labs., Albuquerque, NM (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC04-94AL85000
OSTI ID:
10113518
Report Number(s):
SAND--93-7112C; CONF-931201--7; ON: DE94005100; BR: GB0103012
Country of Publication:
United States
Language:
English