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Journal of Solution Chemistry

, Volume 13, Issue 4, pp 245–257 | Cite as

Excess volumes of aqueous mixtures of the zwitterion and the acid chloride salt of L-amino acids

  • J. Vliegen
  • J. Yperman
  • J. Mullens
  • J. P. François
  • L. C. Van Poucke
Article

Abstract

The apparent molar volumes of the zwitterion (HL) and the chloride salt form (H2LCl) and their mixtures (HL/H2LCl) of glycine, L-serine and L-proline have been measured in aqueous solutions at 25°C. From these experimental data the excess apparent molar volumes of the HL/H2LCl mixtures have been calculated. An attempt is made to explain these excess volume properties in terms of intermolecular hydrogen bond formation between the solute molecules HL and H2LCl when forming the dimer H3L2Cl.

Key words

Apparent molar volume excess volume amino acid dimerization zwitterion glycine l-serine l-proline 

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Copyright information

© Plenum Publishing Corporation 1984

Authors and Affiliations

  • J. Vliegen
    • 1
  • J. Yperman
    • 2
  • J. Mullens
    • 2
  • J. P. François
    • 2
  • L. C. Van Poucke
    • 2
  1. 1.MHOOlenBelgium
  2. 2.Limburgs Universitair CentrumDiepenbeekBelgium

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