Browsing by Author "a62cc391-7838-43e7-b364-d7fc676d114a"
Now showing items 1-8 of 8
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Sepu ́lveda, Luis; Cabrera, Walton; Gamboa, Consuelo; Meyer, Mauricio (1987)A new, rapid, and simple method for preparing long-chain alkyltrimethylammonium (A1TA+X-) or long-chain alkylpyridinium (A1Py+X-) salts (X- = F-, Cl-, Br-, NO3-, SO42-, PO42-, car{ballot box}ylic anions, etc.) is presented. ...
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Bartet, Daniel; Gamboa, Consuelo; Sepúlveda, Luis (1980)The relative association degrees of different anions to micelles of hexadecyltrimethylammonium bromide (CTA) were measured by spectrophotometrically determining the amounts of p-toluenesulfonate (TOS) or benzenesulfonate ...
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Effect of temperature on the viscosity of cationic micellar solutions in the presence of added salts Sepu ́lveda, Luis; Gamboa, Consuelo (1987)The effect of temperature on the viscosities of cetyltrimethylammonium salts (CTA X, X =Br-, NO3-, Tosylate) in the presence of added salts is presented. It was found that plots of 1n of relative viscosity vs 1/T was linear ...
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Free energies of transfer of anions from water to cationic micelles from ionic exchange measurements Gamboa, Consuelo; Sepúlveda, Luis; Soto, Ramón (1981)Ionic exchanges for several anions in hexadecyltrimethylammonium (CTA) have been measured by ultrafiltration and by the shift in the concentration of ferric thiocyanate complex by CTA addition. The results are compared ...
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Gamboa, Consuelo; Sepúlveda, Luis (1986)Viscosities of micelles of cetyltrimethylammonium salts (CTAX, X = tosylate (TOS-), Cl-, Br-, NO3 -) in the presence of Cl-, Br-, NO3 -, benzene sulfonate (BS-), and TOS-, of cetylpyridinium chloride (CpyC) in the presence ...
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Weiss López, Boris; Gamboa, Consuelo; Tracey, Alan S. (1995)Deuterium quadrupole splittings from the aromatic ring of a series of deuterium labeled n-alkylpyridinium ions with linear n-alkyl groups from Ci to Cie have been measured using 2H-NMR spectroscopy. These splittings were ...
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Solubilization of Alkylpyridinium Ions in Cationic Micelles: Effect of the Electrostatic Repulsion Gamboa, Consuelo; Olea, Andrés F. (1993)Binding constants of n-alkylpyridinium, CnPd+ (n = 10, 11, 12, 13, 14, and 16), to CTAX micelles, where X = Br− and Cl−, and to CTAOTOS were determined by ultrafiltration and a steady-state fluorescence method. These ...
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Weiss López, Boris; Vicencio-González, Jaime; Gamboa, Consuelo (1996)Deuterium quadrupole splittings from the aromatic ring of a series of linear N-alkylpyridinium-d5 ions, with alkyl chains from 1 to 16 carbon atoms, were measured using 2H-NMR spectroscopy. The pyridinium ions, 10% deuteriated ...