Liquid-liquid extraction of thorium(IV) with hexaacetato calix(6)arene

Authors
Malkhede, DD Dhadke, PM Khopkar, SM
Citation
Dd. Malkhede et al., Liquid-liquid extraction of thorium(IV) with hexaacetato calix(6)arene, J RAD NUCL, 241(1), 1999, pp. 179-182
Citations number
12
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
ISSN journal
02365731 → ACNP
Volume
241
Issue
1
Year of publication
1999
Pages
179 - 182
Database
ISI
SICI code
0236-5731(199907)241:1<179:LEOTWH>2.0.ZU;2-T
Abstract
Thorium(IV) was quantitatively extracted at pH 7.5 with 0.0001M of hexaacet ato calix(6)arene in toluene and after stripping with 0.05M nitric acid, it was determined spectrophotometrically at 545 nm with thoron. Thorium(IV) w as separated from commonly associated elements in fission products like ura nium(VI), cesium(I), lead(II), strontium(II) and cerium(IV) in varying prop ortions. The method is simple, rapid, selective and applicable for the micr ogram concentrations of thorium(IV).