Sublimation Behavior of Actinoid Chelates of 2,2,6,6-Tetramethyl-3,5-heptanedione
Vacuum sublimation-recrystallizing temperatures were determined for a tracer amount of actinoid chelates of 2,2,6,6-tetramethyl-3,5-heptanedione in order to obtain information about their sublimation behavior. The influence of the amount of sample (in tracer scale or in milligram scale) on its subli...
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Published in | Bulletin of the Chemical Society of Japan Vol. 55; no. 8; pp. 2594 - 2597 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
The Chemical Society of Japan
01.08.1982
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Online Access | Get full text |
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Summary: | Vacuum sublimation-recrystallizing temperatures were determined for a tracer amount of actinoid chelates of 2,2,6,6-tetramethyl-3,5-heptanedione in order to obtain information about their sublimation behavior. The influence of the amount of sample (in tracer scale or in milligram scale) on its sublimation-recrystallizing temperature was also examined. The sublimation-recrystallizing zone temperature of the tracer amount of chelate was lower than that of the milligram amount. In addition, the sublimation-recrystallizing zone temperatures of the actinoid chelates were found to be in the following sequence: UO22+>Am(III), Cm(III)>Th(IV), Np(IV), Pu(IV)>Cf(III). These results suggest that the sublimation technique can be applied to separate the actinoid elements in a carrier-free state. |
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ISSN: | 0009-2673 1348-0634 |
DOI: | 10.1246/bcsj.55.2594 |