Excess molar volumes and isobaric excess molar heat capacities for 1,4-dioxane + 1-butanol, 1-pentanol, 1-hexanol, 1-heptanol, 1-octanol, 1-nonanol, and 1-decanol and excess molar enthalpies for the binary mixtures 1,4-dioxane + methanol, 1-propanol, 1-butanol, 1-pentanol, 1-hexanol, 1-heptanol, 1-octanol, 1-nonanol, and 1-decanol at the temperature 298.15 K have been determined as a function of mole fraction. The magnitude of these experimental quantities is discussed in terms of the nature and type of intermolecular interactions in binary mixtures. When available, the results have been compared with literature values.

No abstract

Excess molar volumes for {1,4-dioxane + heptane, octane, nonane, and decane} at the temperatures 288.15 K, 298.15 K, and 308.15 K, excess molar enthalpies for {1,4-dioxane + heptane, octane, nonane, decane, dodecane, tetradecane, and hexadecane} at the temperature 298.15 K, and isobaric excess molar heat capacities for {1,4-dioxane + heptane, octane, nonane, and decane} at the temperature 298.15 K have been determined as a function of mole fraction. The magnitude of these experimental quantities is discussed in terms of the nature and type of intermolecular interactions in binary mixtures.

Excess molar volumes and isobaric excess molar heat capacities for {1,3-dioxolane + 1-butanol, 1-pentanol, 1-hexanol, 1-heptanol, 1-octanol, 1-nonanol, and 1-decanol} and excess molar enthalpies for the binary mixtures {1,3-dioxolane + 1-propanol, 1-butanol, 1-pentanol, 1-hexanol, 1-heptanol, 1-octanol, 1-nonanol, and 1-decanol} at the temperature 298.15 K have been determined as a function of mole fraction. The results are discussed in terms of structural changes on mixing and of the nature of intermolecular interactions in these solutions.

Refractive indices (n), densities (F), and surface tensions (σ) for {formic acid, acetic acid, propionic acid, or butyric acid + water} mixtures at 298.15 K and normal atmospheric pressure have been determined as a function of mole fractions. From the experimental data, excess molar volumes (V E ) and deviations of refractive index from linear behavior (∆n φ ) have been calculated. The magnitude of these experimental quantities is discussed in terms of nature and type of intermolecular interactions in binary mixtures. Besides, the interpretation of the ratio of molar volume to molar refraction V/R as a measure of the degree of free volume appears to be a useful tool for qualitative considerations concerning volumetric and refractometric data. To analyze the behavior of surface tensions, the Extended Langmuir (EL) model was used.