Diffusivities in aqueous solutions of the potassium salt of amino acids

Espen Hamborg, Willibrordus Petrus Maria van Swaaij, Geert Versteeg

Research output: Contribution to journalArticleAcademicpeer-review

24 Citations (Scopus)

Abstract

Diffusion coefficients of the potassium salt of taurine, sarcosine, l-proline, and glycine have been determined in aqueous solutions using the Taylor dispersion technique over a temperature range from (293 to 368) K and salt concentrations ranging from (0 to 3.0) mol·dm−3. The diffusion coefficients of absorbed N2O in aqueous solutions of the potassium salt of taurine, sarcosine, l-proline, and glycine have been determined over a temperature range from (293 to 333) K and salt concentrations ranging from (1.0 to 3.0) mol·dm−3. The experimental results have been compared to estimated values from a modified Stokes–Einstein relation and available literature data. The diffusivities can be estimated with sufficient accuracy using a modified Stokes–Einstein relation. The diffusion coefficients of CO2 in the aqueous amino acid salt solutions can be estimated by means of the N2O analogy.
Original languageUndefined
Pages (from-to)1141-1145
Number of pages5
JournalJournal of chemical & engineering data
Volume53
Issue number5
DOIs
Publication statusPublished - 2008

Keywords

  • IR-82893
  • METIS-249647

Cite this