Results 261 to 270 of about 110,863 (301)
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Langmuir, 2005
Association constants and adsorption parameters of tetraalkylammoniumdodecyl sulfate (TAADS) ion pairs in water were determined. We have analyzed water/air surface tension measurements obtained for mixtures of sodium dodecyl sulfate (SDS) and tetraalkylammonium bromide of increasing chain lengths (TMAB, TEAB, TPAB, and TBAB).
Vincent, Pradines +3 more
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Association constants and adsorption parameters of tetraalkylammoniumdodecyl sulfate (TAADS) ion pairs in water were determined. We have analyzed water/air surface tension measurements obtained for mixtures of sodium dodecyl sulfate (SDS) and tetraalkylammonium bromide of increasing chain lengths (TMAB, TEAB, TPAB, and TBAB).
Vincent, Pradines +3 more
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The Journal of Physical Chemistry B, 2005
The first and second association constants, K1 and K2, for ion pair formation in aqueous 0.02-3.5 M solutions of bis(trimethyl)-alpha,omega-alkanediammonium halides with variable spacer lengths, 1-n-1 2X (n = 2-4, X = Cl, Br) and bolaform salts and for tetramethylammonium halides (TMAX, X = Cl, Br), K(TMAX), were determined by the chemical trapping ...
Yan, Geng, Laurence S, Romsted
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The first and second association constants, K1 and K2, for ion pair formation in aqueous 0.02-3.5 M solutions of bis(trimethyl)-alpha,omega-alkanediammonium halides with variable spacer lengths, 1-n-1 2X (n = 2-4, X = Cl, Br) and bolaform salts and for tetramethylammonium halides (TMAX, X = Cl, Br), K(TMAX), were determined by the chemical trapping ...
Yan, Geng, Laurence S, Romsted
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Langmuir, 2015
The redox-induced pairing from aqueous solution of a homologous series of sodium n-alkyl sulfate (NaCnSO4) surfactants of 6, 8, 10, and 12 carbons with gold-tethered self-assembled monolayers (SAMs) of ferrocenyldodecanethiolate (FcC12SAu) is investigated by cyclic voltammetry combined with surface plasmon resonance (SPR) spectroscopy.
Kim-Ly, Nguyen +2 more
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The redox-induced pairing from aqueous solution of a homologous series of sodium n-alkyl sulfate (NaCnSO4) surfactants of 6, 8, 10, and 12 carbons with gold-tethered self-assembled monolayers (SAMs) of ferrocenyldodecanethiolate (FcC12SAu) is investigated by cyclic voltammetry combined with surface plasmon resonance (SPR) spectroscopy.
Kim-Ly, Nguyen +2 more
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Trends in Ion Pair Association for Alkali Metal Salts in Nonaqueous Solvents
Transactions of the Kansas Academy of Science (1903-), 1974For a number of experimental properties of alkali metal salts measured in nonaqueous solvents, the magnitude of the solute parameter undergoes a systematic shift with increasing atomic number of the cation or anion. Representative of the fundamental quantities exhibiting such trends are: (a) the half-wave potentials for alkali metal iodides and ...
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ELECTROPHORESIS, 2006
AbstractCE in nonaqueous media was used to study the migrating behavior of two weakly basic s‐triazine pesticides and one of their metabolites. The target pesticides were selected to be representative for each of the two main groups: propazine and deethylatrazine for the chloro‐s‐triazines group and ametryn for the methylthio‐s‐triazines group.
Rita, Carabias-Martínez +4 more
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AbstractCE in nonaqueous media was used to study the migrating behavior of two weakly basic s‐triazine pesticides and one of their metabolites. The target pesticides were selected to be representative for each of the two main groups: propazine and deethylatrazine for the chloro‐s‐triazines group and ametryn for the methylthio‐s‐triazines group.
Rita, Carabias-Martínez +4 more
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The ion-pair association constant of oxalate with fac-tris(2-aminomethylpyridine)cobalt(III)
Polyhedron, 1996The equilibrium constant K for the ion-pair formation fac-[Co(pic)3]3+ + C2O22− ⇌ fac-[Co(pic)3]3+/C2O42−1 where pic = 2-aminomethylpyridine, has been determined spectrophotometrically at 0.35 M (KCl) ionic strength and 25.0°C, using four different calculation approaches. The best results were obtained when the concentration of the minor component (the
Maria Amélia de Almeida Azzellini +3 more
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Association of the Ion Pair End-Groups of Halato Telechelic Polymers in Nonpolar Solvents
1985Halato telechelic polymers (HTP) result from the complete ionization of both ends of telechelic prepolymers. In nonpolar solvents, they form homogeneous gels which upon dilution generally transform into more or less viscous solutions unless they display a phase separation process.
R. Jerome, G. Broze, Ph. Teyssie
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Journal of Solution Chemistry, 2009
We determined by molecular-based simulation the density profiles of the Na+ ⋅⋅⋅Cl− ion-pair association constant in steam environments along three supercritical isotherms to interrogate the behavior of ion speciation in dilute aqueous solutions at extreme conditions.
Ariel A. Chialvo +4 more
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We determined by molecular-based simulation the density profiles of the Na+ ⋅⋅⋅Cl− ion-pair association constant in steam environments along three supercritical isotherms to interrogate the behavior of ion speciation in dilute aqueous solutions at extreme conditions.
Ariel A. Chialvo +4 more
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Ion pair mobility in associated liquid membranes
Analytical Chemistry, 1981Claudio. Fabiani, Claudia. Cianetti
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Ion-pair association constants in dimethyl sulfoxide
The Journal of Organic Chemistry, 1980William N. Olmstead +1 more
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