Partial molar volume of n-alcohols at infinite dilution in water calculated by means of scaled particle theory

2006 ◽  
Vol 124 (13) ◽  
pp. 134507 ◽  
Author(s):  
Giuseppe Graziano
Keyword(s):  
Molar Volume ◽  
Partial Molar Volume ◽  
Infinite Dilution ◽  
Scaled Particle Theory ◽  
Particle Theory

A partial-molar volume study of electrolytes in propylene carbonate-based lithium battery electrolyte solutions at 298.15 K

2002 ◽  
Vol 80 (7) ◽  
pp. 753-760 ◽  
Author(s):  
Jianji Wang ◽  
Yang Zhao ◽  
Kelei Zhuo ◽  
Ruisen Lin
Keyword(s):  
Molar Volume ◽  
Propylene Carbonate ◽  
Partial Molar Volume ◽  
Lithium Battery ◽  
Preferential Solvation ◽  
Partial Molar Volumes ◽  
Scaled Particle Theory ◽  
Solvent Mixtures ◽  
Particle Theory ◽  
Molar Volumes

Apparent molar volumes (V2, ϕ ) and standard partial-molar volumes (V20, ϕ ) of LiClO4 and LiBr at 298.15 K have been determined from precise density measurements in solvent mixtures of propylene carbonate (PC) with dimethylformamide (DMF), tetrahydrofuran (THF), acetonitrile (AN), and methyl formate (MF). The scaled particle theory is used to calculate the contributions of the cavity formation and the electrolyte-solvent interactions to the standard partial-molar volumes. It is shown that V20, ϕ is strongly dependent on the nature of the solvents, and the trends in V20, ϕ with composition of the solvent mixtures are determined by the interaction volumes of electrolytes with solvents. The results are discussed in terms of ionic preferential solvation, packing effect of solvents in the solvation shell, and electrostriction of solvents by ion.Key words: partial-molar volume, scaled particle theory, lithium salts, propylene carbonate, solvent mixtures, lithium battery electrolytes.

Density estimates of binary aqueous solutions

1983 ◽  
Vol 48 (8) ◽  
pp. 2327-2334
Author(s):  
Otakar Söhnel ◽  
Petr Novotný ◽  
Zdeněk Šolc
Keyword(s):  
Aqueous Solutions ◽  
Molar Volume ◽  
Partial Molar Volume ◽  
Infinite Dilution ◽  
The Other ◽  
Density Estimates ◽  
Molar Volumes ◽  
Solutions Of Electrolytes ◽  
Experimental Values

Two methods are given for assessment of density of binary aqueous solutions of electrolytes; one is based on partial molar volume of the dissolved electrolyte at infinite dilution, and the other is based on additivity of apparent molar volumes at a given concentration. The density estimates of aqueous solutions by means of the two methods are compared with experimental values for some electrolytes of the type 1-1 to 4 and 2-2. In all cases the estimates agree with experimental densities up to concentrations of the saturated solutions.

Additivity of the partial molar volumes of organic compounds

1987 ◽  
Vol 65 (9) ◽  
pp. 2248-2253 ◽  
Author(s):  
Norio Nishimura ◽  
Tohru Tanaka ◽  
Takushi Motoyama
Keyword(s):  
Molar Volume ◽  
Crown Ethers ◽  
Partial Molar Volume ◽  
Theoretical Basis ◽  
Infinite Dilution ◽  
Partial Molar Volumes ◽  
Critical Test ◽  
Straight Chain ◽  
Ring Compounds ◽  
Cyclic Molecules

A critical test of additivity for partial molar volume has been made at 25 °C in CCl4 with polyethylene glycol dimethyl ethers, crown ethers, cycloalkanes, n-alkanes, and others. Plots of partial molar volume at infinite dilution [Formula: see text] against the properly chosen number of repeating unit (n) are linear except for small cyclic molecules, and the slopes of homologous straight chain and ring compounds are the same. The values of [Formula: see text] extrapolated to n = 0 for cycloalkanes and crown ethers support the validity of the contribution due to the translational kinetic energy that has been predicted recently on a theoretical basis. The importance of packing efficiencies around the solute molecules has been examined by means of simple models.

scholarly journals Thermoacoustic, Volumetric, and Viscometric Investigations in Binary Liquid System of Cyclohexanone with Benzyl Benzoate at T = 308.15, 313.15, and 318.15 K

2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Sk. Md Nayeem ◽  
M. Kondaiah ◽  
K. Sreekanth ◽  
D. Krishna Rao
Keyword(s):  
Molar Volume ◽  
Partial Molar Volume ◽  
Infinite Dilution ◽  
Partial Molar Volumes ◽  
Isentropic Compressibility ◽  
Liquid Mixtures ◽  
Liquid System ◽  
Benzyl Benzoate ◽  
Molar Volumes ◽  
Binary Liquid

Ultrasonic velocities (u), densities (ρ), and viscosities (η) of binary liquid mixtures of cyclohexanone with benzyl benzoate, including pure liquids, over the entire composition range have been measured at 308.15 K, 313.15 K, and 318.15 K. Using the experimental results, parameters such as molar volume (Vm), isentropic compressibility (ks), intermolecular free length (Lf), acoustic impedance (Z), internal pressure (πi), enthalpy (H), Gibbs free energy of activation of viscous flow (G*E), and excess/deviation properties of these including partial molar volumes (V-m,1 and V-m,2), excess partial molar volumes (V-m,1E and V-m,2E), partial molar volume of the components at infinite dilution (V-m,1∞, V-m,2∞), and excess partial molar volume at infinite dilution (V-m,1E,∞and V-m,2E,∞) have been computed. The observed negative values of VmE, Δks, LfE, and πiE and positive values of zE, HE, ΔG*E, Δη, and Δu for all the liquid mixtures studied clearly indicate the presence of strong dipole-dipole-type interactions, fitting of smaller molecules into bigger molecules. Further theoretical values of sound velocity and viscosity in the mixtures have been evaluated using various theories and have been compared with experimental values to verify the applicability of such theories to the systems studied.

Enthalpies and heat capacities of solution for tert-butyl chloride and bromide in alcohols. Application of SPT, SRMR, and MS

1987 ◽  
Vol 65 (7) ◽  
pp. 1474-1478 ◽  
Author(s):  
R. M. C. Gonçalves ◽  
A. M. N. Simões
Keyword(s):  
Infinite Dilution ◽  
Heat Capacities ◽  
Scaled Particle Theory ◽  
Butyl Chloride ◽  
Particle Theory ◽  
Solvent Interactions ◽  
Tert Butyl ◽  
Tert Butyl Chloride ◽  
Solvent Solvent ◽  
Enthalpies Of Solvation

Enthalpies and heat capacities of solution at infinite dilution for tert-butyl chloride and bromide in several alcohols are reported at 30, 35, and 40 °C.The Scaled Particle Theory (SPT), the Sinanoglu, Reiss, and Moura Ramos (SRMR) and the Model Solute (MS) methods were applied to the enthalpies of solvation. Significant differences in the results calculated from these theories were analysed and data discussed in terms of solute–solvent–solvent interactions.

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