Density, Speed of Sound, Refractive Index, Viscosity, Surface Tension, and Excess Volume of N-Methyl-2-pyrrolidone + 1-Amino-2-propanol {or Bis(2-hydroxypropyl)amine} from T = (293.15 to 323.15) K

The density, speed of sound, refractive index, viscosity, and surface tension values of binary mixtures formed by N-methyl-2-pyrrolidone (NMP) + 1-amino-2-propanol (MIPA) {or bis(2-hydroxypropyl)amine (DIPA)} were determined at several temperatures from (293.15 to 323.15) K. The excess volumes were determined using the density values, and the calculated data have been fitted with a Redlich–Kister equation.