Extraction of calcium from water into nitrobenzene using strontium dicarbollylcobaltate in the presence of 18-crown-6
From extraction experiments and g-activity measurements, the extraction constant corresponding to the equilibrium Ca 2+ (aq)+ SrL 2+ (nb) === CaL 2+ (nb) + Sr 2+ (aq) taking place in the two-phase water-nitrobenzene system(L= 18-crown-6, aq = aqueous phase, nb = nitrobenzene phase) was e...
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Serbian Chemical Society
2000-01-01
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| Series: | Journal of the Serbian Chemical Society |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/0352-5139/2000/0352-51390004275D.pdf |
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doaj-228ab81f6f3f4c648757bbb89aed6a672020-12-18T07:43:36ZengSerbian Chemical Society Journal of the Serbian Chemical Society0352-51391820-74212000-01-0165427527910.2298/JSC0004275D0352-51390004275DExtraction of calcium from water into nitrobenzene using strontium dicarbollylcobaltate in the presence of 18-crown-6Danková Marcela0Makrlík Emanuel1Vanura Petr2nemanemaPrague Institute of Chemical Technology, Department of Analytical Chemistry, Prague, Czech RepublicFrom extraction experiments and g-activity measurements, the extraction constant corresponding to the equilibrium Ca 2+ (aq)+ SrL 2+ (nb) === CaL 2+ (nb) + Sr 2+ (aq) taking place in the two-phase water-nitrobenzene system(L= 18-crown-6, aq = aqueous phase, nb = nitrobenzene phase) was evaluated as log Kex(Ca 2+, SrL 2+) = -1.9 ±0.1. Furthermore, the stability constant of the calcium - 18-crown-6 complex in nitrobenzene saturated with water was calculated for the temperature of 25ºC: log bnb (CaL 2+)=10.1±0.1.http://www.doiserbia.nb.rs/img/doi/0352-5139/2000/0352-51390004275D.pdfwater-nitrobenzene systemcalcium18-crown-6stability constant |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Danková Marcela Makrlík Emanuel Vanura Petr |
| spellingShingle |
Danková Marcela Makrlík Emanuel Vanura Petr Extraction of calcium from water into nitrobenzene using strontium dicarbollylcobaltate in the presence of 18-crown-6 Journal of the Serbian Chemical Society water-nitrobenzene system calcium 18-crown-6 stability constant |
| author_facet |
Danková Marcela Makrlík Emanuel Vanura Petr |
| author_sort |
Danková Marcela |
| title |
Extraction of calcium from water into nitrobenzene using strontium dicarbollylcobaltate in the presence of 18-crown-6 |
| title_short |
Extraction of calcium from water into nitrobenzene using strontium dicarbollylcobaltate in the presence of 18-crown-6 |
| title_full |
Extraction of calcium from water into nitrobenzene using strontium dicarbollylcobaltate in the presence of 18-crown-6 |
| title_fullStr |
Extraction of calcium from water into nitrobenzene using strontium dicarbollylcobaltate in the presence of 18-crown-6 |
| title_full_unstemmed |
Extraction of calcium from water into nitrobenzene using strontium dicarbollylcobaltate in the presence of 18-crown-6 |
| title_sort |
extraction of calcium from water into nitrobenzene using strontium dicarbollylcobaltate in the presence of 18-crown-6 |
| publisher |
Serbian Chemical Society |
| series |
Journal of the Serbian Chemical Society |
| issn |
0352-5139 1820-7421 |
| publishDate |
2000-01-01 |
| description |
From extraction experiments and g-activity measurements, the extraction
constant corresponding to the equilibrium Ca 2+ (aq)+ SrL 2+ (nb) === CaL
2+ (nb) + Sr 2+ (aq) taking place in the two-phase water-nitrobenzene
system(L= 18-crown-6, aq = aqueous phase, nb = nitrobenzene phase) was
evaluated as log Kex(Ca 2+, SrL 2+) = -1.9 ±0.1. Furthermore, the
stability constant of the calcium - 18-crown-6 complex in nitrobenzene
saturated with water was calculated for the temperature of 25ºC: log bnb (CaL
2+)=10.1±0.1. |
| topic |
water-nitrobenzene system calcium 18-crown-6 stability constant |
| url |
http://www.doiserbia.nb.rs/img/doi/0352-5139/2000/0352-51390004275D.pdf |
| work_keys_str_mv |
AT dankovamarcela extractionofcalciumfromwaterintonitrobenzeneusingstrontiumdicarbollylcobaltateinthepresenceof18crown6 AT makrlikemanuel extractionofcalciumfromwaterintonitrobenzeneusingstrontiumdicarbollylcobaltateinthepresenceof18crown6 AT vanurapetr extractionofcalciumfromwaterintonitrobenzeneusingstrontiumdicarbollylcobaltateinthepresenceof18crown6 |
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