Chem. J. Chinese Universities

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Enthalpic Interaction of L-Alanine with Five Oxacid Salts

LIU Chun-Li1,2; MA Lin3; LIN Rui-Sen1*   

  1. 1. Department of Chemistry, Zhejiang University, Hangzhou 310027, China;
    2. Department of Chemistry and Chemistry Engineering, Zaozhuang University,
    Zaozhuang 277160, China; 3. College of Chemistry and Chemistry Engineering, Guangxi University,
    Nanning 530004, China

  • Received:2005-11-15 Revised:1900-01-01 Online:2006-07-10 Published:2006-07-10
  • Contact: LIN Rui-Sen

Abstract: Enthalpies of solution of L-alanine in water and aqueous solutions of LiNO3, NaNO3, KNO3, NaClO4 and Na2SO4 were determined at T=298.15 K by a RD496-Ⅱ microcalorimeter. The transfer enthalpies (ΔHtr) of L-alanine from water to aqueous solutions of salts were derived and discussed in terms of the electrostatic interaction and the structural interaction.

Key words: Transfer enthalpy, L-Alanine, Oxacid salt

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