Solvent extraction of H3O+, NH4+, Ag+, K+, Rb+ and Tl+ into nitrobenzene by using cesium dicarbollylcobaltate in the presence of a hexaarylbenzene-based receptor

From extraction experiments and γ -activity measurements, the extraction constants corresponding to the general equilibrium M + (aq) +  1 ·Cs + (nb) 1 ·M + (nb) + Cs + (aq) taking part in the two-phase water–nitrobenzene system ( 1  = hexaarylbenzene-based receptor; M +  = H 3 O + , NH 4 + , Ag + ,...

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Published inJournal of radioanalytical and nuclear chemistry Vol. 287; no. 2; pp. 497 - 500
Main Authors Makrlík, E., Selucký, P., Vaňura, P., Toman, P., Rathore, R.
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.02.2011
Subjects
Chemistry
Chemistry and Materials Science
Constants
Control systems
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Mathematical analysis
Nitrobenzenes
Nuclear Chemistry
Nuclear Physics
Physical Chemistry
Receptors
Solvent extraction
Stability constants
Extraction
Nitrobenzene
Dicarbollylcobaltate
Stability constants
Univalent ions
Hexaarylbenzene-based receptor
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Summary:From extraction experiments and γ -activity measurements, the extraction constants corresponding to the general equilibrium M + (aq) +  1 ·Cs + (nb) 1 ·M + (nb) + Cs + (aq) taking part in the two-phase water–nitrobenzene system ( 1  = hexaarylbenzene-based receptor; M +  = H 3 O + , NH 4 + , Ag + , K + , Rb + , Tl + ; aq = aqueous phase, nb = nitrobenzene phase) were evaluated. Furthermore, the stability constants of the ML + complex species in nitrobenzene saturated with water were calculated; they were found to increase in the series of Rb +  < K +  < Ag + , Tl +  < H 3 O + , NH 4 + .
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-010-0704-4