Properties of Electrolytic Solutions. XLIX. Conductance of Some Salts in Water at 25°¹

Dimerization of Anions of Long-Chain Fatty Acids in Aqueous Solutions and the Hydrophobic Properties of the Acids

“…19 The difference of 0.5 units (out of about 23) in the equivalent conductivity of the amphipathic ión for a two-carbon increment in chain length does not seem reasonable from a hydrodynamic point of view and does not agree with the difference of 1.74 obtained for the pair decyl-and dodecyltrimethylammonium ions. 22 The reliability of the experimental procedure used in the previous investigation for NaLS2 seems to be further supported by the findings of approximately Onsager-type behavior in dilute solutions for NaDS19 and its applicability to KC1 solutions in another laboratory. 23 A value appreciably less than 72.9 for 0 would not allow the conductivity data of Parfitt and Smith to be fitted by the Fuoss-Onsager extended theory and would require some association as in the case of the previous data.…”

Study of Salt Effects on the Micelle–Monomer Exchange Process of Octyl-, Decyl-, and Dodecyltrimethylammonium Bromide in Aqueous Solutions by Means of Ultrasonic Relaxation Spectroscopy

“…8. In the calculation, the diffusion constants of the surfactant ions are those estimated from limiting ionic conductance data (25). The large value of (E e − C ) may be responsible for the term C .…”

Premicelle Formation of Double-chain Surfactants and Bile Salts in the Neighborhood of the CMC Region: Application of a Differential Conductivity Technique to the Determination of Micellization Parameters

“…This curve was reported by Mukerjee et al 19 and was created using NaTDC. On the other hand, for an equivalent conductivity, maximum curves in Λ vs. C 1/2 plots, contrary to the typical decreasing plots, were reported for the following surfactants: tetradecylpentadecyl sulfate sodium salt 2 , dioctyl-and ethylhexyl-surfosucinate sodium salts 20 , hexadecyl-and octadexyl-pyridonium iodates 21 , octadecyl-triamyl and -tributyl ammonium bromates 22 , and dyes 23 . In addition, in suitable water-ethanol mixtures, a maximum was observed for octadecylpyridonium chloride, but no maximum was obtained in water alone 24 .…”