Complexing properties of α-isosaccharinate: thorium

Autor:	Christian Ekberg, Stefan Allard
Rok vydání:	2006
Předmět:	chemistry.chemical_compound Chromatography Chemistry Liquid–liquid extraction Phase (matter) Acetylacetone Liquid scintillation counting Aqueous two-phase system Thorium chemistry.chemical_element Physical and Theoretical Chemistry Toluene Nuclear chemistry
Zdroj:	Radiochimica Acta. 94:537-540
ISSN:	2193-3405 0033-8230
DOI:	10.1524/ract.2006.94.9-11.537
Popis:	The complexation of Th with α-isosaccharinate has been studied using liquid–liquid-extraction techniques. An organic phase consisting of 0.025 M acetylacetone in toluene was used with a 1.0 M NaClO4 aqueous phase kept at pH 8 in a thermostated AKUFVE unit at 25 °C. The concentration of α-isosaccharinate (ISA-) in the aqueous phase was incrementally increased and samples of equal volumes were taken from the two phases and analyzed in a liquid scintillation detector. Stability constants, β p t, for the complexation reaction Th4++p ISA-↔Th(ISA) p (4-p)+, were determined to be logβ1 25°C=12.56±5.01, logβ2 25°C=19.38+0.35/-0.95, and logβ3 25°C=21.30±0.26.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f40ec5a5cc514264a47e7a7b37bb38ec https://doi.org/10.1524/ract.2006.94.9-11.537 Zobrazit plný text záznamu