Densities have been measured for glycylglycine, glycyl-L-valine and glycyl-L-leucine in aqueous solutions of 0.5, 1.0, 1.5 and 2.0 mol·kg-1 sodium acetate at 298.15 K. The apparent molar volumes, stan- dard partial molar volumes ( V2 s,φ ), standard partial molar volumes of transfer for the dipeptide from water to aqueous sodium acetate solutions (△tV ), the hydration number and volumetric interaction coefficients have been calculated. Both the V2 s,φ and △tV for the glycyl dipeptides increase with increasi...
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