Y. Kasamatsu, A. Toyoshima, H. Toume, K. Tsukada, H. Haba, Y. Nagame
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引用次数: 9
摘要
为了寻找适合实验研究105元素Db阴离子交换行为的条件，我们利用放射性示踪剂95Nb、179Ta和233Pa，采用批处理方法研究了5族元素Nb、Ta和它们的伪同系物Pa在HF/HNO3介质中的阴离子交换行为。在氟离子浓度为1•~ 10-6 M < [F-] < 2•~ 10-2 M的条件下，各同源物对氟离子的吸附行为明显不同，表明各离子形成了不同的阴离子配合物。根据观测到的分布系数-
Anion-exchange Behavior of Nb, Ta, and Pa as Homologues of Db in HF/HNO3 Solutions
To find suitable conditions for the experimental study of anion-exchange behavior of element 105, dubnium (Db), we have investigated anion-exchange behavior of the group-5 elements Nb, Ta, and their pseudo homologue Pa in HF/HNO3 media by a batch method using radiotracers of 95Nb, 179Ta, and 233Pa. Clearly different adsorption behavior was observed among those homologues in the fluoride ion concentrations of 1 •~ 10-6 M < [F-] < 2 •~ 10-2 M, suggesting that each eleeet forms different anionic complexes. Based on the observed distribution coeffi-
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