Densities, Refractive Indices, Viscosities, and Spectroscopic Study of 1-Amino-2-propanol + 1-Butanol and + 2-Butanol Solutions at (288.15 to 333.15) K Spasojević, V.D.; Djordjević, B.D.; Šerbanović, S.P.; Radović, I.R.; Kijevčanin, M.L.; Journal of Chemical & Engineering Data 2014, 59, 1817-1829