Uranyl(VI) Nitrate Salts: Modeling Thermodynamic Properties Using the Binding Mean Spherical Approximation Theory and Determination of “Fictive” Binary Data.

Abstract

Thermodynamic functions E 3000Uranyl (VI) Nitrate Salts: Modeling Thermodynamic Properties Using the Binding Mean Spherical Approximation Theory and Determination of "Fictive" Binary Data. -(RUAS, A.; BERNARD, O.; CANIFFI, B.; SIMONIN, J.-P.; TURQ, P.; BLUM, L.; MOISY*, P.; J. Phys. Chem. B 110 (2006) 7, 3435-3443; CEA Marcoule, DEN/DRCP/Serv. Chim. Proc. Sep., F-30207 Bagnols sur Ceze, Fr.; Eng.) -Schramke 16-021

Description of the Thermodynamic Properties of Aqueous Ionic Solutions within the Mean Spherical Approximation

“…This model has been applied recently to the case of lanthanide and actinide ions in solution (Ruas et al, 2005a(Ruas et al, , b, 2006a. Sketch of the new BiMSA model.…”

Formation of Complexes in RTIL and Ion Separations

“…However, the data that are reported for Ag + seem to be reliable, as the presented by this group value for DMSO fits in very well with the corresponding data of several independent research groups. Some of the logK values for RTILs are presented in Tables 3-5 along with the stability of the same complexes in some molecular solvents (Ruas et al, 2006;Ikeda et al, 2008;Danil de Namor et al, 1995;ArnaudNeu et al, 2003;Bessiere & Lejaille , 1979;Ernst & Jezowska-Trzebiatowska, JezowskaTrzebiatowska & Chmielowska, 1961;Chmielowska, 1961;Kikuchi & Sakamoto, 2000). As could be seen from (Vendilo et al, 2010).…”

“…At the same time, the logK 1 values for an alkali metal cation with crown ether in molecular solvents is correlated (Mei et al, 1977;Smetana & Popov, 1980) with donor number (DN) of the solvent (Reichardt, 2005), Table 5, although some exceptions for [Cs(18C6)] + are known (pyridine: DN 33.1; logK 1 =5.7 (Mei et al, 1977)). In this sense, the log K 1 value presented in (Georg et al, 2010); b (Ruas et al, 2006); c (Ikeda et al, 2008); d logK2 = 3.67 (Ernst &JezowskaTrzebiatowska, 1966) and3.4 (Jezowska-Trzebiatowska &Chmielowska, 1961); e (Lewandowski et al, 2005); f (Bessiere & Lejaille, 1979); j (Danil de Namor et al, 1995); h (Vendilo et al, 2010) ; i (Arnaud-Neu et al, 2003); all data for 23-30 o C. There is also some qualitative agreement of the logK 1 values and a solvent polarity derived from E N T scale (Reichardt, 2005) (empirical scale based on solvatochromic pyridinium Nphenolate betaine dye), Table 5. An examination of Table 5 reveals that the polarity of RTILs with a range of 0.60 -0.65 fits well into the existing empirical solvent polarity scale for molecular solvents characterizing them not as "superpolar", but as quite normal polar solvents (Reichardt, 2005).…”