Taylor dispersion measurements at low electrolyte concentrations .1. Tetraalkylammonium perchlorate aqueous solutions

Barthel, Josef and Gores, Heiner J. and Lohr, C. M. and Seidl, J. J. (1996) Taylor dispersion measurements at low electrolyte concentrations .1. Tetraalkylammonium perchlorate aqueous solutions. JOURNAL OF SOLUTION CHEMISTRY, 25 (10). pp. 921-935. ISSN 0095-9782, 1572-8927

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Abstract

An equipment for the determination of mutual diffusion coefficients using the Taylor's dispersion technique is described. The radius of the capillary was determined with the help of various calibration methods. Diffusion coefficients of aqueous tetraalkylammonium perchlorates, Me(4)NClO(4), and E(4)NClO(4), were measured at 25 degrees C in the concentration range 10(-3) to 5x10(-2) mol-dm(-3), and the slightly soluble Pr4NClO4 up to 1x10(-2) mol-dm(-3). The slope of linear plots of D vs. root c is in agreement with theory, in contrast to the limiting values D-0, which all deviate by about -5% from the Nernst-Hartley values.

Item Type: Article
Uncontrolled Keywords: MUTUAL-DIFFUSION-COEFFICIENTS; TEMPERATURE-DEPENDENCE; WATER; 25-DEGREES-C; MIXTURES; ETHANOL; ISOMERS; HEXANE; Taylor dispersion technique; mutual diffusion coefficient; aqueous tetraalkylammonium perchlorate solutions
Subjects: 500 Science > 540 Chemistry & allied sciences
Divisions: Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie
Depositing User: Dr. Gernot Deinzer
Date Deposited: 22 Jun 2023 09:45
Last Modified: 22 Jun 2023 09:45
URI: https://pred.uni-regensburg.de/id/eprint/51444

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