scholarly journals Studies in Solubility Parameter Theory for Mixed Solvent Systems

1972 ◽  
Vol 50 (6) ◽  
pp. 834-838 ◽  
Author(s):  
Avijit Purkayastha ◽  
John Walkley
Keyword(s):  
Carbon Tetrachloride ◽  
Solubility Parameter ◽  
Volume Fraction ◽  
Preferential Solvation ◽  
Solvent Mixture ◽  
Partial Molal Volume ◽  
Molal Volume ◽  
Saturation Solubility ◽  
Solvent Molecules ◽  
Parameter Theory

Data are presented for the saturation solubility and partial molal volume of iodine in a mixed benzene–cyclohexane solvent and for the saturation solubility of stannic iodide in the same solvent mixture. A successful interpretation of these data in terms of solubility parameter theory is possible if we define an effective volume fraction term. This term reflects the immediate solvent environment of the solute molecule with the preferential solvation of the solute by one of the solvent molecules. Data for iodine in a mixed carbon tetrachloride–benzene solvent mixture and for iodine in a carbon tetrachloride–perfluoroheptane mixture are also interpreted in terms of the proposed theory.

scholarly journals Aromatic fluorocarbon mixtures. II. Carbon tetrachloride+hexafluorobenzene

1973 ◽  
Vol 26 (2) ◽  
pp. 431 ◽  
Author(s):  
S Ruenkrairergsa ◽  
NF Pasco ◽  
DV Fenby
Keyword(s):  
Carbon Tetrachloride ◽  
Solubility Parameter ◽  
Liquid Mixtures ◽  
Excess Volumes ◽  
Equimolar Mixture ◽  
Excess Enthalpies ◽  
Molar Excess ◽  
Carbon Tetra ◽  
Molar Excess Volumes ◽  
Parameter Theory

The molar excess enthalpies and molar excess volumes of carbon tetra- chloride + hexafluorobenzene have been measured at 298.15 K and 308.15 K. The values for the equimolar mixture at 298 15 K are 490 J mol-1 and 0.875 cm3 mol-1 respectively. The results are compared with the values for other liquid mixtures containing a fluorocarbon as one component, and discussed in terms of solubility parameter theory.

scholarly journals INTERACTION STUDIES OF AMINO ACIDS IN AQUEOUS SODIUM BROMIDE SOLUTIONS AT DIFFERENT TEMPERATURE

2017 ◽  
Vol 5 (10) ◽  
pp. 160-167
Author(s):  
Yasmin Akhtar
Keyword(s):  
Amino Acids ◽  
Infinite Dilution ◽  
Adiabatic Compressibility ◽  
Sodium Bromide ◽  
Apparent Molal Volume ◽  
Partial Molal Volume ◽  
Molal Volume ◽  
Solvent Interactions ◽  
Aqueous Sodium ◽  
Bonding Effect

Densities, ultrasonic velocities and viscosities of L- Valine and L- Phenylalanine in aqueous sodium bromide (0.00, 0.025 and 0.05) m solutions have been determined experimentally at 308 and 313 K. The results obtained from density ultrasonic velocity and viscosity measurement have been used to calculate the apparent molal volume, фv, apparent molal, adiabatic compressibility ф Ks, partial molal volume ф0v at infinite dilution, partial molal adiabatic compressibility ф0Ks at infinite dilution, transfer volume ∆ф(tr), experimental slopes Sv and SKs,Falkenhagen coefficient A and  Jones-Dole B coefficient. The results are discussed in terms of the dehydration effect of the sodium bromide upon the amino acids and weak solute- solute and strong solute- solvent interactions. The properties of these amino acids in water and water + sodium bromide solution systems are discussed in terms of the charge, size and hydrogen bonding effect.

scholarly journals Study of Physical Properties for Sodium acetate with Water and Water - Acetone mixtures at Different Temperatures

2017 ◽  
Vol 27 (4) ◽  
Author(s):  
Ahmed Mohammed Abbas ◽  
Zainab Wajdi Ahmed ◽  
Alaa Fadhil Sulaiman ◽  
Issam AbdalKreem AbdalLatif
Keyword(s):  
Sodium Acetate ◽  
Apparent Molal Volume ◽  
Viscosity Data ◽  
Partial Molal Volume ◽  
Molal Volume ◽  
Solvent Interactions ◽  
Acetone Water ◽  
Thermodynamic Activation Parameter ◽  
Different Temperatures ◽  
Apparent Molal Compressibility

In this study binary and ternary solutions are prepared by using the sodium acetate concentrations (0.1, 0.125, 0.2, 0.25, 0.4, 0.5, 0.8, 1 M) in water and acetone –water mixtures .The important parameters such as apparent molal volume, the partial molal volume transfer,  apparent  molal compressibility, free energy of activation of viscous flow and thermodynamic activation parameter (enthalpy and entropy) determined of sodium acetate in water , 20%, 40% ,60% and 80% V/V acetone –water mixtures at 298.15K, 303.15K, and 308.15K from density and viscosity measurements espectively. The limiting apparent molal volumes and experimental slopes were derived from the Masson equation, have been interpreted in terms of solute–solvent and solute–solute interactions  respectively. The viscosity data were analyzed using theJones–Dole equation and the derived parameter B - coefficient has also been interpreted in terms of solute–solvent interactions in the solutions. 

Solvent-induced stresses in glassy polymer: Elastic model

1999 ◽  
Vol 14 (10) ◽  
pp. 4111-4118 ◽  
Author(s):  
Wei-Lung Wang ◽  
J. R. Chen ◽  
Sanboh Lee
Keyword(s):  
Mass Transport ◽  
Surface Concentration ◽  
Anomalous Transport ◽  
Initial Time ◽  
Elastic Model ◽  
Partial Molal Volume ◽  
Longitudinal Displacement ◽  
Linear Elasticity Theory ◽  
Molal Volume ◽  
Induced Stresses

The solvent-induced stresses in glassy polymers were investigated. The mass transport accounts for case I, case II, and anomalous transport. Case I transport is attributed to the concentration gradient, whereas case II transport is attributed to stress relaxation. Anomalous transport is the mixture of case I and case II. Both one-side and two-side mass transports with the boundary condition of constant surface concentration are considered. The stresses and longitudinal displacement arising from the mass transport are formulated based on the linear elasticity theory. The maximum stress is always located at the surface at the initial time. The stresses are a function of the partial molal volume, Young's modulus, and Poisson's ratio. From the longitudinal displacement data, the partial molal volume was determined.

Heat capacities and volumes of some non-electrolytes in N,N-dimethylformamide at 298.15 K

1987 ◽  
Vol 65 (12) ◽  
pp. 2810-2814 ◽  
Author(s):  
Henryk Piekarski
Keyword(s):  
Ethylene Glycol ◽  
Heat Capacities ◽  
Scaled Particle Theory ◽  
Partial Molal Volume ◽  
Cavity Formation ◽  
Particle Theory ◽  
Molal Volume ◽  
Analogous Data ◽  
Other Substances ◽  
Apparent Molal Heat Capacities

Heat capacities and densities of dilute solutions of formamide, acetone, tetrahydrofuran, ethylene glycol, 2-methoxyethanol, and 2-ethoxyethanol in N,N-dimethylformamide were determined at 298.15 K. Apparent molal heat capacities and volumes for these solutes in DMF were calculated and compared with the analogous data for other substances in DMF solution as well as with the data concerning solutions in methanol and water. Heat capacities of cavity formation (ΔCcav) in DMF were calculated on the basis of the Scaled Particle Theory. ΔCcav appeared to be linearly correlated with the standard partial molal volume of corresponding solutes in DMF. Similar dependences were also found for aqueous and methanolic solutions of the non-electrolytes.

Adjustments to Beer Density for Carbon Dioxide Partial Molal Volume and Residual Carbonation After Degassing

1992 ◽  
Vol 50 (2) ◽  
pp. 35-37
Author(s):  
Hugo Patino ◽  
Ernst A. Kemper ◽  
Jean L. Miller ◽  
Walter L. Michener
Keyword(s):  
Carbon Dioxide ◽  
Partial Molal Volume ◽  
Molal Volume

Predictive power in oil resistance of fluororubber and fluorosilicone rubbers based on three-dimensional solubility parameter theory

2019 ◽  
Vol 75 ◽  
pp. 380-386 ◽  
Author(s):  
Yuan Zhuo Wang ◽  
Li Yuan Bi ◽  
Heng Jie Zhang ◽  
Xiao Tian Zhu ◽  
Guang Yong Liu ◽  
...  
Keyword(s):  
Solubility Parameter ◽  
Predictive Power ◽  
Three Dimensional ◽  
Oil Resistance ◽  
Parameter Theory

Temperature dependence of proton magnetic resonance solvent shifts. 3,5-Dichlorosalicylaldehyde in carbon tetrachloride and benzene

1968 ◽  
Vol 46 (19) ◽  
pp. 3110-3112 ◽  
Author(s):  
G. Kotowycz ◽  
T. Schaefer
Keyword(s):  
Carbon Tetrachloride ◽  
Temperature Dependence ◽  
Proton Magnetic Resonance ◽  
Benzene Solution ◽  
Chemical Shifts ◽  
Relative Temperature ◽  
Proton Shift ◽  
Solvent Shifts ◽  
Solvent Molecules ◽  
Proton Chemical Shifts

The ring proton chemical shifts of 3,5-dichlorosalicylaldehyde as a function of temperature in carbon tetrachloride and benzene solutions indicate that if there is association with solvent molecules in benzene solution, then there is also association with carbon tetrachloride solvent molecules. The aldehydic proton shift shows a much smaller (relative) temperature dependence in the carbon tetrachloride solution.

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