Extraction of lead with nitrobenzene solution of strontium dicarbollylcobaltate in the presence of 18-crown-6

被引：0

作者：

Makrlík, E ^{[1
]}

Vanura, P

Becková, V

机构：

[1] Charles Univ, Fac Educ, CR-11636 Prague 1, Czech Republic

[2] Prague Inst Chem Technol, CR-16628 Prague, Czech Republic

[3] Natl Radiat Protect Inst, Prague, Czech Republic

来源：

JOURNAL FUR PRAKTISCHE CHEMIE-CHEMIKER-ZEITUNG | 1999年 / 341卷 / 06期

关键词：

cobalt; crown compound; lead; extraction; water-nitrobenzene system;

D O I：

暂无

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

From extraction experiments with Sr-85 as a tracer, the extraction constant corresponding to the equilibrium Pb2+ (aq)+ SrL2+(nb) reversible arrow PbL2+ (nb) + Sr2+(aq) taking place in the two - phase water - nitrobenzene system (L = 18-crown-6; aq = aqueous phase, nb = nitrobenzene phase) was evaluated as log K-ex(Pb2+, SrL2+) = 1.5. Further, the stability constant of the PbL2+ complex in nitrobenzene saturated with water was calculated: log beta(nb)(PbL2+) = 12.9.

引用

页码：592 / 594

页数：3

共 50 条

[31] Solvent extraction of strontium into nitrobenzene using hydrogen dicarbollylcobaltate in the presence of 12-crown-4
P. Vaňura
E. Makrlík
M. Vobecký;
Journal of Radioanalytical and Nuclear Chemistry, 2003, 257 : 437 - 440
[32] Extraction of microamounts of strontium by a nitrobenzene solution of bis-1,2-dicarbollylcobaltate in the presence of 15-crown-5
Z. Valentová
P. Vaňura
E. Makrlík
Journal of Radioanalytical and Nuclear Chemistry, 1997, 224 : 45 - 48
[33] Solvent extraction of strontium into nitrobenzene using hydrogen dicarbollylcobaltate in the presence of 12-crown-4
Vanura, P
Makrlík, E
Vobecky, M
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2003, 257 (02) : 437 - 440
[34] Extraction of lithium with nitrobenzene solution of strontium bis-1,2-dicarbollylcobaltate in the presence of 15-crown-5
E. Makrlík
P. Vaňura
M. Daňková
Journal of Radioanalytical and Nuclear Chemistry, 1999, 242 : 185 - 187
[35] Extraction of lithium with nitrobenzene solution of strontium bis-1,2-dicarbollylcobaltate in the presence of 15-crown-5
Makrlík, E
Vanura, P
Danková, M
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 1999, 242 (01) : 185 - 187
[36] Extraction of85Sr by the nitrobenzene solution of bis-1,2-dicarbollylcobaltate in the presence of dibenzo-18-crown-6
P. Nový
P. Vaňura
E. Makrlík
Journal of Radioanalytical and Nuclear Chemistry, 1998, 231 : 65 - 68
[37] Extraction of 85Sr by the nitrobenzene solution of bis-1,2-dicarbollylcobaltate in the presence of dibenzo-18-crown-6
Novy, P
Vanura, P
Makrlik, E
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 1998, 231 (1-2) : 65 - 68
[38] Solvent extraction of microamounts of strontium and barium into nitrobenzene by using synergistic mixture of hydrogen dicarbollylcobaltate and dicyclohexano-18-crown-6
E. Makrlík
P. Vaňura
P. Selucký
Journal of Radioanalytical and Nuclear Chemistry, 2009, 281 : 633 - 638
[39] Extraction of barium by using nitrobenzene solution of cesium dicarbollylcobaltate in the presence of 15-crown-5
Vanura, P
Makrlík, E
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2003, 256 (02) : 373 - 377
[40] Solvent extraction of microamounts of strontium and barium into nitrobenzene by using synergistic mixture of hydrogen dicarbollylcobaltate and dicyclohexano-18-crown-6
Makrlik, E.
Vanura, P.
Selucky, P.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2009, 281 (03) : 633 - 638

← 1 2 3 4 5 →