Optical and volumetric study of molecular interactions in binary mixtures of tetrahydrofuran with 1-propanol and 2-propanol

Abstract

The refractive indices and densities of binary mixtures of tetrahydrofuran (THF) with 1-propanol (1-P) and 2-propanol (2-P) over the entire composition range have been measured at 293, 303 and 313 K. Refractive index and density data have been used to evaluate the molar refraction deviation ΔR m and excess molar volume . The values of ΔR m and are negative for THF + 1-P mixture and are positive for THF + 2-P mixture. This suggests that specific interactions are taking place in THF + 1-P mixture while dispersive forces are responsible for behaviour of THF + 2-P mixture.