Extraction of Sodium Picrate from Water into Nitrobenzene in the Presence of Dibenzo-21-Crown-7
Gespeichert in:
Verfasser / Beitragende:
[E. Makrlík]
Ort, Verlag, Jahr:
2004
Enthalten in:
Zeitschrift für Physikalische Chemie/International journal of research in physical chemistry and chemical physics, 218/7/2004(2004-07-01), 887-891
Format:
Artikel (online)
Online Zugang:
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| 024 | 7 | 0 | |a 10.1524/zpch.218.7.887.35727 |2 doi |
| 035 | |a (NATIONALLICENCE)gruyter-10.1524/zpch.218.7.887.35727 | ||
| 100 | 1 | |a Makrlík |D E. | |
| 245 | 1 | 0 | |a Extraction of Sodium Picrate from Water into Nitrobenzene in the Presence of Dibenzo-21-Crown-7 |h [Elektronische Daten] |c [E. Makrlík] |
| 520 | 3 | |a From extraction experiments with 22Na as a tracer, the extraction constant corresponding to the equilibrium Na+(aq) + A−(aq) + L(nb) ⇔ NaL+(nb) + A−(nb) taking place in the two-phase water-nitrobenzene system (A− = picrate, L = dibenzo-21-crown-7; aq = aqueous phase, nb = nitrobenzene phase) was evaluated as logKex(NaL+,A−) = 1.9±0.1. Further, the stability constant of the dibenzo-21-crown-7-sodium complex in nitrobenzene saturated with water was calculated for a temperature of 25°C log βnb(NaL+) = 7.1±0.1. | |
| 540 | |a © 2004 Oldenbourg Wissenschaftsverlag GmbH | ||
| 690 | 7 | |a Thermodynamics & statistical physics |2 nationallicence | |
| 690 | 7 | |a Laboratory techniques, experiments |2 nationallicence | |
| 690 | 7 | |a Physical chemistry |2 nationallicence | |
| 773 | 0 | |t Zeitschrift für Physikalische Chemie/International journal of research in physical chemistry and chemical physics |d Oldenbourg Wissenschaftsverlag GmbH |g 218/7/2004(2004-07-01), 887-891 |x 0942-9352 |q 218:7/2004<887 |1 2004 |2 218 |o zpch | |
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| 950 | |B NATIONALLICENCE |P 100 |E 1- |a Makrlík |D E. | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Zeitschrift für Physikalische Chemie/International journal of research in physical chemistry and chemical physics |d Oldenbourg Wissenschaftsverlag GmbH |g 218/7/2004(2004-07-01), 887-891 |x 0942-9352 |q 218:7/2004<887 |1 2004 |2 218 |o zpch | ||
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