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| Title: | SEPARATION OF NIOBIUM FROM CHLORIDE MEDIA BY SOLVENT-EXTRACTION WITH DICYCLOHEXYL-18-CROWN-6 |
| Authors: | DEORKAR, NV
KHOPKAR, SM |
| Issue Date: | 1991 |
| Publisher: | ROYAL SOC CHEMISTRY |
| Citation: | ANALYST, 116(9), 961-963 |
| Abstract: | Niobium was quantitatively extracted from 7-10 mol dm-3 hydrochloric acid with 2.0 x 10(-2) mol dm-3 dicyclohexyl-18-crown-6 in dichloromethane. The metal was stripped from the organic phase with 0.1 mol dm-3 sulphuric acid and determined spectrophotometrically at 540 nm as its complex with 4-(2-thiazolylazo)resorcinol. This method permits the sequential separation of niobium from vanadium, tantalum, zirconium, hafnium and iron. |
| URI: | http://dx.doi.org/10.1039/an9911600961
http://dspace.library.iitb.ac.in/xmlui/handle/10054/11808
http://hdl.handle.net/10054/11808 |
| ISSN: | 0003-2654 |
| Appears in Collections: | Article
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