LIQUID-LIQUID-EXTRACTION OF ZIRCONIUM FROM HAFNIUM AND OTHER ELEMENTS WITH DICYCLOHEXYL-18-CROWN-6

被引：16

作者：

DEORKAR, NV

KHOPKAR, SM

机构：

[1] Department of Chemistry, Indian Institute of Technology, Bombay

来源：

ANALYTICA CHIMICA ACTA | 1991年 / 245卷 / 01期

关键词：

SPECTROPHOTOMETRY; ZIRCONIUM; HAFNIUM; EXTRACTION; DICYCLOHEXYL-18-CROWN-6;

D O I：

10.1016/S0003-2670(00)80197-X

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Zirconium was quantitatively extracted with 2.5 x 10(-2) M dicyclohexyl-18-crown-6 in dichloromethane from 8.5 M hydrochloric acid. It was stripped with 0.5 M hydrochloric acid and was determined spectrophotometrically as its complex with Arsenazo III. Hafnium was not extracted under these conditions, but from the residual aqueous phase it was extracted with 7.0 x 10(-2) M dicyclohexyl-18-crown-6 in dichloromethane from 9.0 M hydrochloric acid. It was stripped with 0.1 M perchloric acid and determined spectrophotometrically at 540 nm as its complex with xylenol orange. The separation of zirconium and hafnium from other metals is also described.

引用

页码：27 / 33

页数：7

共 14 条

[1]

[Anonymous], 1970, ANAL CHEM ZIRCONIUM

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