Results 131 to 140 of about 22,563,925 (190)

Individual extraction constants of some organic cations in the two-phase water–nitrobenzene system

Journal of Radioanalytical and Nuclear Chemistry, 2010
From extraction experiments and c-activity measurements, the exchange extraction constants corre- sponding to the general equilibrium C ? (aq) ? Cs ? (nb) , C ? (nb) ? Cs ? (aq) taking part in the two-phase water- nitrobenzene system (C ? = organic cation; aq = aqueous phase, nb = nitrobenzene phase) were evaluated.
E. Makrlík   +3 more
openaire   +3 more sources

Contribution to the thermodynamics of complexes of alkali metal cations with dibenzo-18-crown-6 in water-nitrobenzene extraction system

open access: yesCollection of Czechoslovak Chemical Communications, 1984
The stability constants for the ML + complex species, where M + is an alkali metal cation and L is dibenzo-18-crown-6, in nitrobenzene saturated with water were calculated by employing published equilibrium data.
Emanuel Makrlík   +2 more
openaire   +2 more sources

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

Zeitschrift für Physikalische Chemie, 2006
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.
E. Makrlík, P. Vaňura
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Individual extraction constants of some divalent metal cations in the two-phase water–nitrobenzene system

Journal of Radioanalytical and Nuclear Chemistry, 2010
From extraction experiments and c-activity measurements, the exchange extraction constants corresponding to the general equilibrium M(aq) ? Sr(nb) ¢ M(nb) ? Sr(aq) taking part in the two-phase water– nitrobenzene system (M = Mg, Ca, Ba, Cu, Zn, Cd, Pb, UO2þ 2 , Mn , Fe, Co, Ni; aq = aqueous phase, nb = nitrobenzene phase) were evaluated.
E. Makrlík, P. Vaňura
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Contribution to the thermodynamics of complexes of Ni2+ with ethylenediamine and some N-alkyl-substituted ethylenediamines in the two-phase water-nitrobenzene extraction system

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 1997
Abstract General relationships were formulated among thermodynamic parameters characterizing complex-formation equilibria in both phases of a two-phase water-nitrobenzene extraction system and ion transfers across the interface of this system. Using these relationships and known parameters, the stability constants of Ni2+ with ethylenediamine and ...
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Investigations on volta potentials in water-nitrobenzene systems and on surface potentials of these solvents

Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1983
Abstract The dynamic condenser method has been used for determination of Volta potentials in water-nitrobenzene partition systems, δ nw wn ψ (MX), as well as determining the difference between surface potentials Δ nw wn χ of both solvents. Values of Δ nw wn ψ o for several electrolytes have been measured and mutual consistency of these date ...
Zbigniew Koczorowski, Irwina Zagórska
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