Published June 1979 | Version v1
Journal article Metadata-only

Solvent extraction of Nb(V) with 5,7-dichloro 8-hydroxy quinoleine

Creators

  • 1. Paris-11 Univ., 91 - Orsay (France). Inst. de Physique Nucleaire

Description

Distribution coefficient of Nb(V) (95Nb) in the two phase systems: chlorooxine-CHCl3/(H+, Li+, Cl-, ClO4-) ionic strength 6 has been measured as a function of the classical parameters used in solvent extraction. We discuss how to interpret these data taking into account interaction of chelating agent with H+ and Cl- and the mean activity coefficient of HCl in the HClO4 + HCl and LiCl + HCl aqueous phases. Oxychlorocomplexes of Nb(V) in HCl 6M seem to bear charge minus one and to be third and quarter order

Abstract (French)

L'interpretation du partage du niobium pentavalent dans les systemes biphases: chlorooxine - CHCl3/milieux aqueux (H+, Li+, Cl-, ClO4-) de force ionique 6, est discutee, compte tenu des interactions du chelatant avec les ions H+ et Cl- et de la variation du coefficient d'activite thermodynamique de HCl dans les milieux HClO4 + HCl et LiCl + HCl. Dans HCl 6M il semble que Nb(V) soit present sous forme d'oxychlorocomplexes de charges - 1 et du 3e et 4e ordre

Additional details

Additional titles

Original title (French)
Extraction de Nb(V) par la dichloro-5,7-hydroxy-8-quinoleine

Publishing Information

Journal Title
Analusis
Journal Volume
7
Journal Issue
6
Series
Analusis.
Journal Page Range
302-308
ISSN
0365-4877

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
11512949
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
CHELATES; DISTRIBUTION FUNCTIONS; EXPERIMENTAL DATA; GRAPHS; HYDROCHLORIC ACID; NIOBIUM COMPOUNDS; NIOBIUM 95; QUINOLINES; SOLVENT EXTRACTION
Descriptors DEC
AZINES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHLORINE COMPOUNDS; COMPLEXES; DATA; DATA FORMS; DAYS LIVING RADIOISOTOPES; HALOGEN COMPOUNDS; HETEROCYCLIC COMPOUNDS; HYDROGEN COMPOUNDS; INFORMATION; INORGANIC ACIDS; INTERMEDIATE MASS NUCLEI; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; NIOBIUM ISOTOPES; NUCLEI; NUMERICAL DATA; ODD-EVEN NUCLEI; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; PYRIDINES; RADIOISOTOPES; SEPARATION PROCESSES; TRANSITION ELEMENT COMPOUNDS