Scandium nitrate-nitric acid-water-tributyl phosphate system. III. IR spectra of scandium extracts from concentrated nitric acid solutions
Journal Article
·
· Radiochemistry
OSTI ID:136344
- Khlopin Radium Institute, St. Petersburg (Russian Federation); and others
Equilibrium organic phases in extraction systems consisting of tributyl phosphate (TBP) (neat or 1 M in CCl{sub 4}) and 8-12 M nitric acid containing scandium or scandium-free have been studied by IR spectroscopy. Extracted complex contains 3, 4, or 5 nitric acid molecules per Sc atom in the case of extraction from 8.3, 10.9, and 12.2 M HNO{sub 3}, respectively, and corresponds to the formula Sc(NO{sub 3}){sub 3}{center_dot}mHNO{sub 3}{center_dot}3TBP. Nitric acid molecules are incorporated into extracted complex via H-bond between oxygen atom of coordinated nitrate ion and acid proton.
- OSTI ID:
- 136344
- Journal Information:
- Radiochemistry, Journal Name: Radiochemistry Journal Issue: 2 Vol. 37; ISSN 1066-3622; ISSN RDIOEO
- Country of Publication:
- United States
- Language:
- English
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