Hydration and Aggregation Neutral Oxygen-Donor Extractants Hydration and Aggregation of Monofunctional Sulfoxide and Other Neutral Oxygen-Donor Extractants: The D1(2-Ethylhexyl) Sulfoxide, Dodecane, Water System

Moyer, Bruce A.; Caley, Catherine E.; Baes, C.F.

doi:10.1080/07366298808917966

Cited by 18 publications

(10 citation statements)

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“…The equilibrium constants of these species were determined by nonlinear regression analysis and are shown in Table 2. When Er(III) is extracted with mixtures of B2EHSO and DOSO from thiocyanate solutions, the extraction equilibrium may be written as Er 3^ + 3SCN"+zB2EHSOorg+(3 -z)DOSOorgEr(SCN)3 · zB2EHSO · (3 -z)DOSOorg (9) where ζ = 0, 1, 2 and 3. The extraction data in Fig.…”

Section: Extraction Of Lanthanides With Mixtures Of Sulphoxidesmentioning

confidence: 99%

“…B2EHSO was purchased from Fairfield Chemical Co., USA, and purified by the method reported in the literature [9]. TOPO, obtained from Fluka AG, was purified by the method reported elsewhere [10].…”

Section: Reagentsmentioning

confidence: 99%

“…4 were analysed using Eq. (9), and the best fit between the experimental and calculated distribution coef- ficients was obtained when the formation of the species Er(SCN) 3 · B2EHSO · 3DOSO apart from the species Er(SCN) 3 · 2B2EHSO · DOSO and Er(SCN) 3 · B2EHSO · 2DOSO was assumed. The extraction constants for these species are given in Table 2.…”

Section: Extraction Of Lanthanides With Mixtures Of Sulphoxidesmentioning

confidence: 99%

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Radiochemical Extraction of Lanthanide Thiocyanate Complexes with Bis-2-Ethylhexyl Sulphoxide

et al. 1994

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The extraction of lanthanides (Ln) such as Nd(III), Eu(III) and Er(III) from thiocyanate solutions by bis-2-ethylhexyl sulphoxide (B2EHSO) in benzene has been studied by tracer techniques. For comparison, extraction studies have been carried out with di-n-octyl sulphoxide (DOSO) and tri-octyl phosphine oxide (TOPO). Extraction studies have also been carried out with mixtures of B2EHSO and DOSO or TOPO. A relatively small synergistic enhancement has been observed with a mixture of extractants, which may be due to the formation of more stable mixedligand complexes. The extraction data have been analysed by both graphical and theoretical methods taking into account aqueous phase speciation and all plausible complexes extracted into the organic phase. The equilibrium constants of the extracted species were determined by non-linear regression analysis.

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Section: Extraction Of Lanthanides With Mixtures Of Sulphoxidesmentioning

confidence: 99%

Section: Reagentsmentioning

confidence: 99%

Section: Extraction Of Lanthanides With Mixtures Of Sulphoxidesmentioning

confidence: 99%

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Radiochemical Extraction of Lanthanide Thiocyanate Complexes with Bis-2-Ethylhexyl Sulphoxide

et al. 1994

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“…SXLSQA (18)(19)(20)(21). Our results provide new information concerning (i) the Taken together, the absorbance and water-content data suggest the presence of HDDNS aggregates containing a core of hydrogenbonded water molecules (27).…”

Section: Lumetta Et Almentioning

confidence: 99%

“…The number of water molecules in each aggregate was set at 4.6 per DDNS group. Downloaded by [The University Of Melbourne Libraries] at 14:39 22 June 2016The program SXLSQA(18)(19)(20)(21) also includes an optional provision for treatment of aqueous phase activity effects via the Pitzer model.Pitzer parameters published for HNOj(19) and Zn(N0j)z(35) were employed in the modelling with neglect of H ? -z~~+ interactions.However, owing to the condition of constant aqueous acidity maintained in the experiments.…”

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confidence: 99%