SCANDIUM NITRATE-NITRIC ACID-WATER-TRIBUTYL PHOSPHATE SYSTEM .3. IR-SPECTRA OF SCANDIUM EXTRACTS FROM CONCENTRATED NITRIC-ACID SOLUTIONS

被引：0

作者：

NIKITINA, GP

EGOROVA, VP

LISTOPADOV, AA

SHPUNT, LB

机构：

来源：

RADIOCHEMISTRY | 1995年 / 37卷 / 02期

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D O I：

暂无

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Equilibrium organic phases in extraction systems consisting of tributyl phosphate (TBP) (neat or 1 M in CCl4) and 8-12 M nitric acid containing scandium or scandium-free have been studied by IR spectroscopy. Extracted complex contains 3, 4, or 5 nitric acid molecules per Sc atom in the case of extraction from 8.3, 10.9, and 12.2 M HNO3, respectively, and corresponds to the formula Sc(NO3)(3) . mHNO(3) . 3TBP, Nitric acid molecules are incorporated into extracted complex via H-bond between oxygen atom of coordinated nitrate ion and acid proton.

引用

页码：124 / 127

页数：4