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
Creators
- 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
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- Russian Federation
- INIS RN
- 28040686
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CARBON TETRACHLORIDE; CHEMICAL BONDS; CONCENTRATION RATIO; COORDINATION VALENCES; GADOLINIUM COMPLEXES; INFRARED SPECTRA; NITRATES; NITRIC ACID; SCANDIUM COMPLEXES; SOLVENT EXTRACTION; TBP; YTTERBIUM COMPLEXES
- Descriptors DEC
- BUTYL PHOSPHATES; CHLORINATED ALIPHATIC HYDROCARBONS; COMPLEXES; ESTERS; EXTRACTION; HALOGENATED ALIPHATIC HYDROCARBONS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; NITROGEN COMPOUNDS; ORGANIC CHLORINE COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; OXYGEN COMPOUNDS; PHOSPHORIC ACID ESTERS; RARE EARTH COMPLEXES; SEPARATION PROCESSES; SPECTRA; TRANSITION ELEMENT COMPLEXES; VALENCE