Journal of Solution Chemistry

, Volume 32, Issue 9, pp 791–802

Volumetric Properties of Aqueous 2-Chloroethanol Solutions and Volumes of Transfer of Some Amino Acids and Peptides from Water to Aqueous 2-Chloroethanol Solutions

  • Manoj M. Munde
  • Nand Kishore
Article

DOI: 10.1023/B:JOSL.0000003149.57001.bc

Cite this article as:
Munde, M.M. & Kishore, N. Journal of Solution Chemistry (2003) 32: 791. doi:10.1023/B:JOSL.0000003149.57001.bc

Abstract

Densities and apparent molar volumes of aqueous 2-chloroethanol were determined at temperatures from 15.0 to 34.4°C using digital densimetry. The results of the volumetric measurements have been used to calculate the following thermodynamic quantites at 25°C: V2o = 55.05 ± 0.02 cm3-mol−1, (∂V2o/∂T)p = 0.01486 ± 0.00318 cm3-K−1-mol−1, and (∂2V2o/∂T2)p = 0.02972 ± 0.00318 cm3-K−2-mol−1. Partial molar volumes of transfer from water to 1 mol-dm−3 2-chloroethanol have also been determined for L-glycine, L-alanine, L-serine, L-glutamic acid, and L-aspartic acid at 35.0°C. The transfer results have been explained in terms of the nature of the interactions of the groups in the solute and solvent. Hydration numbers of L-glycine and L-alanine have also been calculated in aqueous 2-chloroethanol.

Amino acids diglycine partial molar volume 2-chloroethanol hydration number 

Copyright information

© Plenum Publishing Corporation 2003

Authors and Affiliations

  • Manoj M. Munde
  • Nand Kishore
    • 1
  1. 1.Department of ChemistryIndian Institute of Technology Bombay, PowaiMumbai–400 076India

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