University of North Florida
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Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Email: schalk@unf.edu
Website: @unf

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Journal of Physical Chemistry

  • Publisher: American Chemical Society
  • FAD Code: JPCH
  • CODEN: JPCHAX
  • ISSN: 0022-3654
  • Abbreviation: J. Phys. Chem.
  • DOI Prefix: 10.1021/jp
  • Language: English
  • Comments: Fulltext from 1896 V1

Citations 3

"Sustained And Damped Oscillations In The Permanganate Hydroxylamine Reaction In A Continuous-flow Stirred Tank Reactor"
J. Phys. Chem. 1991 Volume 95, Issue 15 Pages 5809-5810
Arpad Nagy, Anna Olexova, and Ludovit Treindl

Abstract: The reaction system MnO4--NH2OH-H3PO4 in a CSTR exhibits sustained and damped oscillations, if MnO4- ions are at a stoichiometric ratio or in an excess. The design of this permanganate chemical oscillator is based on the phase diagrams in the [NH2OH]-ko and [H3PO4]-ko planes. An interaction of solvated Mn(IV), ions, which are in equilibrium with (MnO2)col stabilized by the presence of H2PO4- ions, with manganese species mostly in higher oxidation states seems to be the core of our permanganate oscillator with hydoxylamine.
Continuously stirred tank reactor

"Determination Of Ternary Diffusion Coefficients By The Taylor Dispersion Method"
J. Phys. Chem. 1990 Volume 94, Issue 12 Pages 5180-5183
Derek G. Leaist

Abstract: A new procedure is described for the rapid determination of ternary mutual coefficients using Taylor dispersion. Pulses of liquid are injected into a long capillary tube containing a laminar flow of liquid of different composition. A differential refractometer at the tube outlet monitors the dispersion of the injected samples. The ternary diffusion coefficients are calculated from the temporal moments of the changes in refractive index. To test the procedure, diffusion coefficients are determined for the three-component systems sucrose + potassium chloride + water and sodium chloride + magnesium chloride + water at 25 OC. The measured diffusion coefficients are compared with accurate values obtained by optical interferometry.
Dispersion Diffusion coefficients

"Measurement Of Diffusion-coefficients Of Some Indoles And Ascorbic Acid By Flow Injection Analysis"
J. Phys. Chem. 1990 Volume 94, Issue 2 Pages 1003-1005
David Robinson, James E. Anderson, and Jeong Long Lin

Abstract: Diffusion coefficients of 5-hydroxyindole, 5-methoxyindole, their derivatives, and ascorbic acid have been determined at 0.5 X and 5 X lo-' M by flow injection analysis. The mobile phase is a 0.1 M phosphate buffer solution at pH 7.4. Results obtained are found to correlate well with the size of the molecule and may be interpreted on the basis of the Stokes-Einstein relation.
Indoles Ascorbic acid Diffusion coefficients