Thermophysical property characterization of aqueous amino acid salt solutions containing α -aminobutyric acid

•Thermophysical properties of aqueous potassium and sodium salt solutions of α-aminobutyric acid were studied.•Density, electrolytic conductivity, refractive index, and viscosity of the solution were measured.•The concentrations of amino acid salt ranges from x1=0.009 to 0.06.•The temperature range studied was (303.15 to 343.15)K.•The measured data were represented satisfactorily by using the applied correlations.