High-temperature spectroscopy for nuclear waste applications

Grant, Patrick M.; Robouch, P.; Torres, Richard; Silva, R. J.

doi:10.1007/bf02040499

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…These data, not discussed in this review, could be used as estimates for the trivalent actinide complexes because of the chemical similarity between the trivalent lanthanides and actinides. The studies include Eu(III) with carbonate (15-35 uC, solvent extraction), 13 Nd(III) with sulfate (30-250 uC, spectrophotometry), 14 Lanthanides (III) with fluoride (5-45 uC, ion exchange), 15 Nd(III)/Sm(III)/Ho(III) with chloride (100-250 uC, spectrophotometry), 16 Pr(III) with acetate (20-95 uC, absorption spectroscopy), 17 Nd(III) with acetate (25-225 uC, potentiometry), 18 (20-70 uC, photoacoustic spectroscopy), 19 (25-70 uC, potentiometry and calorimetry), 20,21 Eu(III) with acetate (25-170 uC, potentiometry), 22 (8-59 uC, fluorescence spectroscopy), 23 Lanthanides (III) with oxydiacetate (5-50 uC, potentiometry and calorimetry), 24 Sm(III) with oxydiacetate (25-70 uC, potentiometry and calorimetry), 25 and Eu(III) with 4-phenylethynyl-2,6-pyridinedicarboxylic acid (25-87.5 uC, fluorescence spectroscopy). 26…”

Section: Trivalent Lanthanides As Chemical Analogsmentioning

confidence: 99%

Thermodynamics of actinide complexation in solution at elevated temperatures: application of variable-temperature titration calorimetry

Rao

2007

Chem. Soc. Rev.

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Studies of actinide complexation in solution at elevated temperatures provide insight into the effect of solvation and the energetics of complexation, and help to predict the chemical behavior of actinides in nuclear waste processing and disposal where temperatures are high. This tutorial review summarizes the data on the complexation of actinides at elevated temperatures and describes the methodology for thermodynamic measurements, with the emphasis on variable-temperature titration calorimetry, a highly valuable technique to determine the enthalpy and, under appropriate conditions, the equilibrium constants of complexation as well.

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Section: Trivalent Lanthanides As Chemical Analogsmentioning

confidence: 99%

Thermodynamics of actinide complexation in solution at elevated temperatures: application of variable-temperature titration calorimetry

Rao

2007

Chem. Soc. Rev.

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Collinear Photothermal Deflection Spectroscopy of Liquid Samples at Varying Temperature

et al. 1993

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The method of photothermal beam deflection was demonstrated for measuring the absorption spectrum of an aqueous Nd3+ solution at temperatures between 25°C and 90°C. Changes in the magnitude of the observed deflection can be correlated with the temperature dependence of both the absorptivity of the Nd3+ ions and the physical properties of the solvent, most notably the thermo-optic coefficient d n/d T.

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High-temperature spectroscopy for nuclear waste applications

Cited by 2 publications

References 6 publications

Thermodynamics of actinide complexation in solution at elevated temperatures: application of variable-temperature titration calorimetry

Thermodynamics of actinide complexation in solution at elevated temperatures: application of variable-temperature titration calorimetry

Collinear Photothermal Deflection Spectroscopy of Liquid Samples at Varying Temperature

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