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The 1H-NMR spectra of liquid binary mixtures, N-methylformamide (NMF)-dioxane (Dx), were recorded at 298 K within nearly the whole range of the mixed solvent compositions. From these data the values of the spectral parameter, Δδ(NMF-Dx) were found. The densities and viscosities of the mixed solvents were measured at 298.15 K, as well as the dielectric permittivities at 293.15 K, 298.15 K, 303.15 K and 308.15 K. From all these new parent data, the values of molar volumes (V12), kinematic viscosities(α12/d12) and their deviations from "ideality" were calculated. Additionally, the values of the temperature coefficients of dielectric permittivity, α12 = (1/ε) · [dε/d(1/T)], were found. The scrutiny of all these structural parameters as functions of the mixture composition points to the formation of a "complex" (sub-unit) of the 2NMF · Dx type in the bulk of the mixed solvents.

Relative permittivities (ε) at five temperatures, between (293.15 and 313.15) K, viscosities (η) at three temperatures, between (293.15 and 303.15) K, and speeds of sound (u) at 298.15 K of binary mixtures of 2-methoxyethanol (1) + butylamine (2) are reported. From all those data, the deviations from mole fraction additivity of the relative permittivity (Δε), viscosity (Δη), and speed of sound (Δu) were calculated and fitted to a Redlich−Kister equation.

Densities (ρ) and relative permittivities (ε) at four temperatures, between (288.15 and 298.15) K, and viscosities (η) at three temperatures, between (291.15 and 298.15) K, of binary mixtures of 2-methoxyethanol (1) + propylamine (2) are reported. The excess molar volumes (V^E) and the relative permittivity and viscosity deviations (Δε and Δη) were calculated from these experimental data. The results are discussed in terms of intermolecular interactions.

Desities (ρ) at five temperatures, between (291.15 and 308.15) K, and viscosities (η) at three temperatures, between (293.15 and 303.15) K, of binary mixtures of 2-methoxyethanol (1) + acetone (2) are reported. Excess molar volumes (V^E) are calculated.

Densities and relative permittivities of binary mixtures of 2-methoxyethanol + dioxane at five temperatures, between (291.15 and 313.15) K, are reported. Excess molar volumes are calculated.