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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/11808

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
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