Apparent molar volumes and apparent molar heat capacities of aqueous tetrahydrofuran, dimethyl sulfoxide, 1,4-dioxane, and 1,2-dimethoxyethane at temperatures from 278.15K to 393.15K and at the pressure 0.35MPa

Partial molar volumes of organic solutes in water. XXI: Cyclic ethers at temperatures T= (278 to 373) K and at low pressure

“…[25] give lower values of standard partial molar volumes in the temperature range from (278 to 373) K compared to our data; average deviations are about (0.86 and 0.11) cm 3 Á mol À1 for oxolane and 1,4-dioxane, respectively. Larger deviations are observed at lower temperatures.…”

“…The deviations cannot be explained by higher experimental pressure. On the other hand, the solute evaporation might be one of explanations of large deviations observed in the case of oxolane [25].…”

“…Data presented in the literature in the form of a smoothing function of temperature [24,25] were excluded. All five solutes investigated here were studied by Cabani et al [24] who present parameters of smoothing function of temperature (polynomials of either the second or the third order) for apparent molar volumes in the range from (277 to TABLE 1 Coefficients a, and b of equation (1) and extrapolated values of the partial molar volumes at infinite dilution V 0 m;2 for {oxolane(2) or 1,3-dioxolane(2) or oxane(2) or 1,4-dioxane (2) or 1,3,5-trioxane(2) + water(1)}.…”

Effect of Temperature on the Process of Hydrophobic Hydration. Part I. Hydrophobic Hydration of 1,4-Dioxane and 12-Crown-4 Ethers

“…The values of the partial molar heat capacities at 298.15 K, C p ,2 o , for 1,4-dioxane and 12C4 were calculated by summing the Δ sol C p ,m o values and molar heat capacities of the pure compounds ( C p ,m * ) of 150.61 J·K −1 ·mol −1 for 1,4-dioxane and (305.5 ± 0.2) J·K −1 ·mol −1 for 12C4, respectively, at the same temperature (eq ) and given in Table . C p ,2 o = Δ sol C p ,m o + C p ,m * The values of partial molar heat capacity in pure water well agree with literature data: [219, 212, 222.4, and (215.9 ± 5.3)] J·K −1 ·mol −1 for 1,4-dioxane, and (459.0 ± 9.0) J·K −1 ·mol −1 for 12C4, respectively.…”

Densities and Molar Thermal Expansions of (Water + 1,4-Dioxane) Mixture over the Temperature Range from 274.15 to 333.15 K at Atmospheric Pressure─Comparison with Literature Data

“…Polytemperature density measurements of the water + 1,4-dioxane mixture were performed for the first time by Geddes for 9 compositions in the temperature range from 293.15 K to 353.15 K (293.15, 298.15, 303.15, 313.15, 333.15, 353.15). Later, similar studies of the density of the water + 1,4-dioxane mixture were also carried out in the following works , , − , , , , , , , : Unfortunately, these data do not allow to calculate the coefficient of thermal expansion of the mixture with a high accuracy over the entire range of compositions and over a wide temperature range, since some data are given in a very narrow temperature range ,,,,,,,,,, and others in a small set of compositions. ,,,,,,,, …”