Mutual diffusion coefficients of l-lysine in aqueous solutions

Mutual diffusion coefficients, D, were determined for aqueous solutions of l-lysine at T = 298.15 K at concentrations from (0.001 to 0.100) mol · dm−3. From these experimental results, the hydrodynamic radius Rh, diffusion coefficients at infinite dilution D0, the thermodynamic factors and activity coefficients γ, by using the Hartley equation, have been estimated, permitting us to have a better understanding of the thermodynamic of these systems of l-lysine in aqueous solutions.