Marine Science Faculty Publications
Temperature Dependence of Europium Carbonate Complexation
Document Type
Article
Publication Date
1987
Keywords
Europium, carbonate complexation, carbonic acid dissociation, tributy phosphate extraction
Digital Object Identifier (DOI)
https://doi.org/10.1007/BF00646333
Abstract
The temperature dependencies of europium carbonate stability constants were examined at 15, 25, and 35°C in 0.68 molal Na+(ClO 4 − , HCO 3 − ) using a tributyl phosphate solvent extration technique. Our distribution data can be explained by the equilibria $$\begin{gathered} Eu^{3 + } + H_2 O + CO_2 (g)_ \leftarrow ^ \to EuCO_3^ + + 2H^ + \hfill \\ - log\beta _{12} = 9.607 + 496(t + 273.16)^{ - 1} \hfill \\ Eu^{3 + } + 2H_2 O + 2CO_2 (g)_ \leftarrow ^ \to Eu(CO_3 )_2^ - + 4H^ + \hfill \\ - log\beta _{24} = 21.951 + 670(t + 273.16)^{ - 1} \hfill \\ Eu^{3 + } + H_2 O + CO_2 (g)_ \leftarrow ^ \to EuHCO_3^{2 + } + H^ + \hfill \\ - log\beta _{11} = 1.688 + 1397(t + 273.16)^{ - 1} \hfill \\ \end{gathered}$$
Was this content written or created while at USF?
Yes
Citation / Publisher Attribution
Journal of Solution Chemistry, v. 16, p. 555-566
Scholar Commons Citation
Cantrell, Kirk J. and Byrne, Robert H., "Temperature Dependence of Europium Carbonate Complexation" (1987). Marine Science Faculty Publications. 1677.
https://digitalcommons.usf.edu/msc_facpub/1677
