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You are here: Home :: Keyword index :: vig bis [Ni :: water activity meter - weak convergence Water–Nitrobenzene System

Items for "Water–Nitrobenzene System"

Contribution to the Thermodynamics of Complexes of Alkali Metal Cations with Benzo-18-Crown-6 in the Water–Nitrobenzene Extraction System

From extraction experiments and γ-activity measurements, the exchange extraction constants corresponding to the general equilibrium M+(aq) + NaL+(nb) ⇔ ML+(nb) + Na+(aq) taking place in the two–phase water–nitrobenzene system (M+ = Li+, K+, Rb+, Cs+; L = benzo-18-crown-6; aq = aqueous phase, nb = nitrobenzene phase) were evaluated...

Keywords: Thermodynamics, Alkali Metal Cations, Crown Compound, Extraction and Stability Constants, Water–Nitrobenzene System

09/2006 | Zeitschrift für Physikalische Chemie, Oldenbourg Wissenschaftsverlag
Extraction Distribution of Sodium Picrate in the Water–Nitrobenzene System in the Presence of p-tert-Butylcalix[4]arene-tetrakis(N,N-diethylacetamide)

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 = p-tert -butylcalix[4]arene-tetrakis(N,N-diethylacetamide); aq = aqueous phase, nb = nitrobenzene phase] was evaluated as log Kex(NaL+, A-) = 4.6± 0.1...

Keywords: Sodium Picrate, Calix[4]arene Compound, Extraction, Water–Nitrobenzene System, Stability constant

12/2006 | Zeitschrift für Physikalische Chemie, Oldenbourg Wissenschaftsverlag
A Combined Experimental and Theoretical Study on the Complexation of H3O+ with Hexaethyl Calix[6]arene Hexaacetate

From extraction experiments and γ-activity measurements, the extraction constant corresponding to the equilibrium H3O+(aq) + 1•Na + (nb)⇔ 1•H3O + (nb) + Na + (aq) taking place in the two-phase water–nitrobenzene system (1 = hexaethyl calix[6]arene hexaacetate; aq = aqueous phase, nb = nitrobenzene phase) was evaluated as log Kex(H3O+,1•Na + ) = 0.0± 0.1...

Keywords: hydroxonium cation, calixarene compound, Water–Nitrobenzene System, DFT study, structure of protonated calixarene

04/2007 | Zeitschrift für Physikalische Chemie, Oldenbourg Wissenschaftsverlag