Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
Separation of Scandium Using Liquid–Liquid Extraction with Macrocyclic Polyether(s) from Picrate Media
N. V. DeorkarShnpad M. Khopkar
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1991 Volume 64 Issue 6 Pages 1962-1965

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Abstract

Scandium was quantitatively extracted at pH 2.5–4.5 with 4.0×10−2 mol dm−3 18-crown-6 in dichloromethane from 4.0×10−2 mol dm−3 solution of picric acid. It was stripped with 0.1 mol dm−3 nitric acid and determined spectrophotometrically at 650 nm as its complex with Arsenazo-III. It was separated from yttrium, lanthanides, zirconium, hafnium, vanadium, niobium, and uranium in multicomponent mixtures. Scandium from rock sample was also analysed.

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