Extraction of lead with nitrobenzene solution of strontium bis-1,2-dicarbollylcobaltate in the presence of 15-crown-5

被引：0
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作者：
E. Makrlík
P. Vańura
V. Bečková
机构：
[1] Charles University,Faculty of Education
[2] Prague Institute of Chemical Technology,undefined
[3] National Radiation Protection Institute,undefined
来源：
Journal of Radioanalytical and Nuclear Chemistry | 1999年 / 241卷
关键词：
Physical Chemistry; Inorganic Chemistry; Aqueous Phase; Strontium; Stability Constant;
D O I：
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摘要：
From extraction experiments and γ-activity measurements, the extraction constant corresponding to the equilibrium Pb2+(aq)+SrL22+(nb)⇆PbL22+(nb)+Sr2+(aq) taking place in the two-phase water-nitrobenzene system (L=15-crown-5; aq = aqueous phase, nb = nitrobenzene phase) was evaluated: logKex (Pb2+,SrL22+)=3.0. Further, the stability constant of the PbL22+ complex in nitrobenzene saturated with water was calculated: log βnb(PbL22+)=17.8
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页码：659 / 661
页数：2
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