Partial molar volumes of organic solutes in water. XII. Methanol(aq), ethanol(aq), 1-propanol(aq), and 2-propanol(aq) at T=(298 to 573) K and at pressures up to 30 MPa

Density data for dilute aqueous solutions of methanol, ethanol, 1-propanol, and 2-propanol are presented together with partial molar volumes at infinite dilution calculated from the experimental data. The measurements were performed at from T = (298.15 up to 573.15) K and at pressure close to the saturated vapor pressure of water, at p = 30 MPa and at pressure between these limits. The data were obtained using a high-temperature high-pressure flow vibrating-tube densimeter

Partial molar volumes of organic solutes in water. X. Benzene and toluene at temperatures from (298 to 573) K and at pressures up to 30 MPa

Density data for dilute aqueous solutions of benzene and toluene are presented together with partial molar volumes at infinite dilution calculated from the experimental data. The measurements were performed at temperatures from (298.15 to 573.15) K and at pressures close to the saturated vapor pressure of water, at 30 MPa and at pressures between these limits. The data were obtained using a high-temperature high-pressure flow vibrating-tube densimeter

Partial molar volumes of organic solutes in water. XV. Butanediols(aq) at temperatures from (298K to 573K) and at pressures up to 30MPa

Density data for dilute aqueous solutions of three butanediols (1,3-butanediol, 2,3-butanediol, 1,4-butanediol) are presented together with partial molar volumes at infinite dilution calculated from the experimental data. The measurements were performed at temperatures from 298.15 K up to 573.15 K and at pressures close to the saturated vapour pressure of water, at pressures close to 20 MPa and 30 MPa. The data were obtained using a high-temperature high-pressure flow vibrating-tube densimeter

Partial molar volumes of organic solutes in water. XIV. Polyhydric alcohols derived from ethane and propane at temperatures T=298K to T=573K and at pressures up to 30MPa

Density data for dilute aqueous solutions of 1,2-ethanediol (ethylene glycol), 1,2-propanediol, 1,3-propanediol, and 1,2,3-propanetriol (glycerol) are presented together with partial molar volumes at infinite dilution calculated from the experimental data. The measurements were performed at temperatures from T = 298.15 K up to T = 573.15 K and at pressure close to the saturated vapour pressure of water, at pressures close to p = 20 MPa and p = 30 MPa. The data were obtained using a high-temperature high-pressure flow vibrating-tube densimeter

Partial molar volumes of organic solutes in water. VII. o- and p-Aminobenzoic acids at T= 298 K to 498 K and o-diaminobenzene atT= 298 K to 573 K and pressures up to 30 MPa

Density data for dilute aqueous solutions of two isomeric aminobenzoic acids and of o -diaminobenzene (1,2-diaminobenzene) are presented together with partial molar volumes calculated from the experimental data. The measurements were performed at temperatures from 298.15 K up to either 498.15 K (aminobenzoic acids) or 573.15 K ( o -diaminobenzene) and at either atmospheric pressure, or at pressures close to the saturated vapour pressure of water, and also at pressure p = 30 MPa. The data were obtained using either a high-temperature and high-pressure flow vibrating-tube densimeter for measurements at elevated pressures or a commercial vibrating-tube cell DMA 602HT for measurements at atmospheric pressure

Standard partial molar volumes in water of mono- and polyhydric aliphatic alcohols in wide ranges of temperature and pressure

New results of a systematic study of partial molar volumes at infinite dilution (standard partial molar volumes) in water of several hydroxyderivatives of aliphatic hydrocarbons are summarized. The experiments were performed using an automated vibrating-tube densimeter designed for the measurements of density differences Δρ=ρ(solution)−ρ(water) in the temperature range from 298 K to 573 K and at pressures up to 30 MPa. The set of solutes comprises monohydric alcohols derived from methane, ethane, propane, and isomers of butane, and selected polyhydric (from two to five hydroxyl groups) derivatives of ethane, propane, n-butane, n-pentane, 2,2-dimethylpropane and n-hexane. Analogues of isothermal compressibility and isobaric expansivity for standard partial molar volume have also been evaluated from experimental data.The results are discussed from the point of view of regularities within homologous series. The effect of the number of hydroxyl groups and their position on the aliphatic chain is examined. Particular attention is focused to the sign inversion of the derivatives of standard partial molar volume with respect to temperature and pressure that is observed for solutes with large number of hydroxyl groups. A simple group contribution method has proved to be capable to predict this behaviour qualitatively, the effect is not, however, strictly additive

Partial molar volumes of organic solutes in water. XIII. Butanols (aq) at temperatures T=298K to 573K and at pressures up to 30MPa

Density data for dilute aqueous solutions of 1-butanol, 2-butanol, 2-methyl-1-propanol (iso-butanol), and 2-methyl-2-propanol (tert-butanol) are presented together with partial molar volumes at infinite dilution calculated from the experimental data. The measurements were performed at temperatures from T = 298.15 K up to T = 573.15 K and at pressure close to the saturated vapour pressure of water, at pressures close to p = 20 MPa and p = 30 MPa. The data were obtained using a high-temperature high-pressure flow vibrating-tube densimeter

Partial molar volumes of organic solutes in water. IV. Benzoic and hydroxybenzoic acids at temperatures fromT = 298 K toT = 498 K and pressures up to 30 MPa

Density data for dilute aqueous solutions of benzoic acid and three hydroxybenzoic acids obtained in the temperature range 298.15 K to 498.15 K and at either atmospheric pressure or at pressures close to the saturated vapour pressure of water and at elevated pressures up to 30 MPa are presented along with partial molar volumes calculated from the experimental data. The data were obtained by using both a high-temperature high-pressure flow vibrating-tube densimeter and a commercial vibrating-tube cell DMA 602HT