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Journal of Solution Chemistry

, Volume 21, Issue 2, pp 163–170 | Cite as

Temperature dependence of apparent molar volumes and viscosity B-coefficients of amino acids in aqueous potassium thiocyanate solutions from 15 to 35°C

  • Ramesh K. Wadi
  • Rma Kant Goyal
Article

Abstract

Precise density ρ and viscosity η data at 15, 25 and 35°C for solutions of glycine, DL-alanine, L-threonine, β-alanine, γ-aminobutyric acid and ε-aminocaproic acid in water and in (1m, 3m, 5m) aqueous potassium thiocyanate were measured and the limiting apparent molar volumes V ϕ o and the B-coefficients calculated. The V κ o and B values were split into the contributions from the NH 3 + ,COO and CH2 groups. These data are rationalized on the basis of hydrophillic and hydrophobic interactions between the various groups present in these solutions.

Key Words

Apparent molar volume viscosityB-coefficient amino acids potassium thiocyanate temperature dependence 

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Copyright information

© Plenum Publishing Corporation 1992

Authors and Affiliations

  • Ramesh K. Wadi
    • 1
  • Rma Kant Goyal
    • 1
  1. 1.Department of ChemistryUniversity of DelhiDelhiIndia

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