skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Composition and structure of zirconium complexes in tributyl phosphate extracts of Zr from concentrated nitric acid solutions

Abstract

Using quantitative difference IR spectroscopy the authors have found that the tributyl phosphate extracts of zirconium from 12-15 M HNO{sub 3} contain ionic associates [(TBP){sub 2}H{sup +}]Zr(NO{sub 3}){sub 5}{sup -} (I) and [TBP{center_dot}H{sub 3}O{sup +} (H{sub 2}O){sub n}]Zr(NO{sub 3}){sub 5}{sup -} (II), where n = 1,2, as well as Zr(NO{sub 3}){sub 4}(TBP){sub 2} complex at a lower concentration than (I) and (II). The equilibrium I {r_reversible} II is shifted toward II at higher C{degrees}{sub HNO{sub 3}} and lower C{sub Zr}{degrees}. The structure of associates I and II is discussed.

Authors:
; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
147129
Resource Type:
Journal Article
Journal Name:
Journal of Structural Chemistry
Additional Journal Information:
Journal Volume: 34; Journal Issue: 5; Other Information: PBD: Mar 1994; TN: Translated from Zhurnal Strukturnoi Khimii; 34: No. 5, 80-89(Sep-Oct 1993)
Country of Publication:
United States
Language:
English
Subject:
40 CHEMISTRY; ZIRCONIUM COMPLEXES; ABSORPTION SPECTROSCOPY; CHEMICAL COMPOSITION; MOLECULAR STRUCTURE; TBP; EXTRACTION

Citation Formats

Stoyanov, E.S., Chizhevskaya, S.V., and Chekmarev, A.M. Composition and structure of zirconium complexes in tributyl phosphate extracts of Zr from concentrated nitric acid solutions. United States: N. p., 1994. Web. doi:10.1007/BF00753573.
Stoyanov, E.S., Chizhevskaya, S.V., & Chekmarev, A.M. Composition and structure of zirconium complexes in tributyl phosphate extracts of Zr from concentrated nitric acid solutions. United States. doi:10.1007/BF00753573.
Stoyanov, E.S., Chizhevskaya, S.V., and Chekmarev, A.M. Tue . "Composition and structure of zirconium complexes in tributyl phosphate extracts of Zr from concentrated nitric acid solutions". United States. doi:10.1007/BF00753573.
@article{osti_147129,
title = {Composition and structure of zirconium complexes in tributyl phosphate extracts of Zr from concentrated nitric acid solutions},
author = {Stoyanov, E.S. and Chizhevskaya, S.V. and Chekmarev, A.M.},
abstractNote = {Using quantitative difference IR spectroscopy the authors have found that the tributyl phosphate extracts of zirconium from 12-15 M HNO{sub 3} contain ionic associates [(TBP){sub 2}H{sup +}]Zr(NO{sub 3}){sub 5}{sup -} (I) and [TBP{center_dot}H{sub 3}O{sup +} (H{sub 2}O){sub n}]Zr(NO{sub 3}){sub 5}{sup -} (II), where n = 1,2, as well as Zr(NO{sub 3}){sub 4}(TBP){sub 2} complex at a lower concentration than (I) and (II). The equilibrium I {r_reversible} II is shifted toward II at higher C{degrees}{sub HNO{sub 3}} and lower C{sub Zr}{degrees}. The structure of associates I and II is discussed.},
doi = {10.1007/BF00753573},
journal = {Journal of Structural Chemistry},
number = 5,
volume = 34,
place = {United States},
year = {1994},
month = {3}
}