Published August 1996 | Version v1
Journal article

Features of solvent extraction of gadolinium(3), ytterbium(3) and scandium(3) in macroscopic concentrations by tributyl phosphate from concentrated nitric acid solutions

  • 1. Radievyj Inst., Leningrad (Russian Federation)

Description

Gadolinium(3) (0.28-1.07 mol/l), ytterbium(3) (0.51-0.56 mol/l) and scandium(3) (0.2-1.2 mol/l) extraction by nondiluted TBP and TBP solutions in carbon tetrachloride from nitric acid solutions (2.7-12.3 mol/l) has been studied. By the IR spectroscopy method it is shown that the composition of solvates extracted corresponds to the formula M(NO3)3 · mHNO3 · 3TBP, where M(3) = Sc, Cd, Yb. Nitric acid is added by H-bond of medium strength to oxygen atom of nitrate group in the first coordination sphere of metal ion. 22 refs; 3 figs

Additional details

Additional titles

Original title (Russian)
Особенности экстракции макроколичеств гадолиния(3), иттербия(3) и скандия(3) трибутилфосфатом из концентрированных растворов азотной кислоты

Publishing Information

Journal Title
Zhurnal Prikladnoj Khimii
Journal Volume
69
Journal Issue
8
Journal Page Range
p. 1290-1295.
ISSN
0044-4618
CODEN
ZPKHAB