Density Of Ternary Mixtures Research Articles

Density and excess molar volume of ternary mixtures monoethanolamine + ethanol/n-propanol + H2O at (293.15–323.15) K and 101 kPa

In this work, the density of ternary mixtures, monoethanolamine (MEA) (1) + ethanol (2) + H2O (3) and MEA (1) + n-propanol (2) + H2O (3) and corresponding five binary mixtures, MEA (1) + ethanol (2), MEA (1) + H2O (3), ethanol (2) + H2O (3), MEA (1) + n-propanol (2) and n-propanol (2) + H2O (3) were reported over the whole composition ranges at temperatures from (293.15 to 323.15) K and 101 kPa. Excess molar volume (VmE) for binary and ternary systems were also calculated and correlated by Redlich-Kister and Nagata-Tamura equations respectively. Fitting results for ternary mixtures were also compared with those by Redlich-Kister, Cibulka, Singh and Piñeiro empirical equations. Furthermore, the variation of VmE value with temperature was discussed and explained from intermolecular interactions, namely forces of hydrogen bonds interaction between unlike molecules and dispersion forces.

Interaction of Aqueous Solution of Sulphamethoxazole Drug with Diglycine by Volumetric Method at Different Temperatures

Abstract The interaction of diglycine with sulphamethoxazole drug as a function of temperature and concentration have been investigated by volumetric method. The density of ternary mixture of diglycine (0.002–0.01 mol · kg –1) in aqueous sulphamethoxazole drug (0.001–0.01 mol · kg –1) solution have been measured using Anton Paar DSA 5000 instrument at T = (288.15 to 308.15) K. The apparent molar volumes V φ , partial molar volume at infinite dilution V φ 0, transfer partial molar volume Δ tr V φ ○, partial molar expansibility E 2 o , thermal expansion coefficient α 2, and Hepler's constant (∂C P ∞/∂P) T are calculated from density data. The above parameters are used to interpret the solute-solute and solute-solvent interactions of diglycine in aqueous solution of sulphamethoxazole drug. Hydration number and interaction coefficients have also been calculated from these data. Dehydration of diglycine is observed, rising with the temperature and drug molality. These results are explained on the basis of drug-water-amino acid interactions. The data suggest that interaction between ions and charged/hydrophilic groups are predominant.

Excess Thermodynamic Properties of Ternary Mixtures of N-Methylcyclohexylamine and Toluene with 1-Alcohols

Abstract Excess volume and speed of sound data for the ternary mixtures were reported at 303.15 K over the entire composition range for three ternary mixtures containing N-methylcyclohexylamine and toluene as common components and 1-alcohols as third component, namely 1-propanol, 1-butanol, and 1-pentanol. The experimental speed of sound and density of ternary mixtures were used to compute isentropic compressibility (ḱs123) and the quantity Δks123, the difference between measured value and that computed from the constituent binary data. Further, the experimental ternary excess volume data were compared with calculated data obtained by empirical relations proposed by Redlich–Kister, Kohler, Tsao–Smith, and Hwang. The results were analyzed on the basis of intermolecular interactions between component molecules and also in terms of constituent binary data.

Density and Viscosity of Ternary Mixtures of $$\kappa $$ -Carrageenan, Sodium Chloride, and Water

The viscosity and density of ternary mixtures containing \(\kappa \)-carrageenan, sodium chloride, and water have been measured from (303 to 318) K at different values of pH. The presence of NaCl in the ternary systems produced an electro-viscous effect that influenced the viscosity and density of the system. The polynomial models used to correlate the viscosity and density gave good fits to the experimental data.

Densities of ternary mixtures of benzene + cyclohexane + hexane between 298.15 and 473.15 K

The results of measurements of the densities of the ternary mixtures of benzene + cyclohexane + hexane using a high pressure stainless steel pycnometer system in the whole composition range over a wide variation of temperature from 298.15 to 473.15 K are presented. The experimental densities were compared with those predicted by the Spencer-Danner-modified Rackett equation (SDR) and the Hankinson-Brobst-Thompson correlation (HBT). The SDR showed an average absolute deviation of 0.33% while the HBT predicted the densities of the mixtures with an average absolute deviation of 0.75%.

Packing Density of Ternary Mixtures of Spheres

KNOWLEDGE of the mechanics of systems of large particles has lagged behind that of the other states of matter and probably all the results of any significance before 1958 have been compiled by Deresiewicz1. Here we describe some measurements of the packing densities of ternary mixtures of spheres. This is relevant to industries which have to handle granular materials and to problems in chemical physics associated with the study of volumes of mixtures of liquids composed of spherical atoms or molecules.