Thermodynamic and transport properties of L-serine and L-threonine in aqueous sodium acetate and magnesium acetate solutions at T = 298.15 K

摘要: Abstract The apparent molar volumes, V2,ϕ, adiabatic compressibilities, κS,2,ϕ, and relative viscosities, ηr, of l -serine -threonine in different concentrations aqueous sodium acetate magnesium solutions at T = 298.15 K have been obtained from the measurements densities, speed sound, flow time, respectively. These data are used to derive partial V 2 ∘ , κ S (at infinite dilution), viscosity B-coefficients. corresponding quantities transfer, (ΔtV0, Δ t ΔtB), obtained. activation free energy, μ ≠ for viscous has calculated solutions. hydration numbers, nH, side chain contributions, interaction coefficients also calculated. values B-coefficient, increase with concentration influence on transfer properties is greater than A comparison ΔtV0, ΔtB reported dl -α-alanine -α-amino-n-butyric acid shows that same acetate.