2018
DOI: 10.1021/acs.inorgchem.8b00647
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Complexation of Trivalent Lanthanides (Eu) and Actinides (Cm) with Aqueous Phosphates at Elevated Temperatures

Abstract: In this study, the complexation of Eu(III) and Cm(III) with aqueous phosphates was investigated using laser-induced luminescence spectroscopy. Experiments at 25 °C and different ionic strengths (0.6-3.1 mol·L NaClO) established the formation of EuHPO and CmHPO. From the conditional stability constants, the respective values at infinite dilution as well as the ε(Me(HPO);ClO) (Me = Eu or Cm) ion interaction coefficients (using the specific ion interaction theory - SIT) were derived. Further experiments (at const… Show more

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Cited by 21 publications
(25 citation statements)
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“…This is especially troublesome when studying redox reactions. Phosphate ions are known to readily precipitate supplemented lanthanides [37]. Tris(hydroxymethyl)-aminomethane buffer (Tris) is strongly temperature dependent and can further undergo Schiff base-type condensations with aldehydes, which is problematic when investigating substrates like formaldehyde [38,39].…”
Section: The Redox Dye Dcpipmentioning
confidence: 99%
“…This is especially troublesome when studying redox reactions. Phosphate ions are known to readily precipitate supplemented lanthanides [37]. Tris(hydroxymethyl)-aminomethane buffer (Tris) is strongly temperature dependent and can further undergo Schiff base-type condensations with aldehydes, which is problematic when investigating substrates like formaldehyde [38,39].…”
Section: The Redox Dye Dcpipmentioning
confidence: 99%
“… b Recalculated using the values published by Jordan et al and the log 10 β 0 and Δ R H m 0 values for the reaction H + + H 2 PO 4 – ⇌ H 3 PO 4 at each temperature from Grenthe et al …”
Section: Introductionmentioning
confidence: 92%
“…As already recognized in our previous investigation dealing with the complexation of Eu­(III) and Cm­(III) with aqueous phosphates at elevated temperatures, studies concerning the complexation reactions of trivalent actinides with various phosphate ligands, i . e ., H 2 PO 4 – , HPO 4 2– , or PO 4 3– , are rather scarce.…”
Section: Introductionmentioning
confidence: 99%
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