Excess partial molar volumes and thermal expansivities in the water-rich region of aqueous 2-butanone

1994 ◽  
Vol 23 (2) ◽  
pp. 339-350 ◽  
Author(s):  
James V. Davies ◽  
Robert Fooks ◽  
Yoshikata Koga
Keyword(s):  
Partial Molar Volumes ◽  
Rich Region ◽  
Molar Volumes ◽  
Thermal Expansivities ◽  
Excess Partial Molar Volumes

Critical evaluation of partial molar volumes and excess partial molar volumes of molten fluoride melts

2016 ◽  
Vol 125 (1) ◽  
pp. 497-508 ◽  
Author(s):  
Blanka Kubíková ◽  
Miroslav Boča ◽  
Jarmila Mlynáriková ◽  
Zuzana Netriová ◽  
Zuzana Vasková
Keyword(s):  
Critical Evaluation ◽  
Partial Molar Volumes ◽  
Molar Volumes ◽  
Fluoride Melts ◽  
Molten Fluoride ◽  
Excess Partial Molar Volumes

scholarly journals Thermophysical properties of binary mixtures of N,N-dimethylformamide with three cyclic ethers

2013 ◽  
Vol 78 (9) ◽  
pp. 1443-1460 ◽  
Author(s):  
Biswajit Sinha ◽  
Rajendra Pradhan ◽  
Sanjoy Saha ◽  
Dhiraj Brahman ◽  
Abhijit Sarkar
Keyword(s):  
Ambient Temperature ◽  
Binary Mixtures ◽  
Atmospheric Pressure ◽  
Excess Molar Volumes ◽  
Partial Molar Volumes ◽  
Excess Properties ◽  
Pfp Theory ◽  
Liquid Component ◽  
Molar Volumes ◽  
Excess Partial Molar Volumes

Densities and viscosities of the binary mixtures consisting of tetrahydrofuran (THF), 1,3-dioxolane (1,3-DO) and 1,4-dioxane (1,4-DO) with N,N-dimethylformamide (DMF) over the entire range of composition were measured at temperatures 298.15, 308.15 and 318.15 K and at atmospheric pressure. Ultrasonic speeds of sound of these binary mixtures were measured at ambient temperature and atmospheric pressure (T = 298.15 K and P = 1.01?105 Pa). The various experimental data were utilized to derive excess molar volumes (VmE), excess viscosities (?E), and excess isentropic compressibilities (?sE). Using the excess molar volumes (VmE), excess partial molar volumes (and ) and excess partial molar volumes at infinite dilution (and ) of each liquid component in the mixtures were derived and discussed. Excess molar volumes (VmE) as a function of composition at ambient temperature and atmospheric pressure were used further to test the applicability of the Prigogine-Flory-Patterson (PFP) theory to the experimental binaries. The excess properties were found to be either negative or positive depending on the nature of molecular interactions and structural effects of liquid mixtures. Em,1V Em,2VE0,m,1VE0,m,2V.

Partial Molar Volumes of Some Multicharged Electrolytes in Aqueous Dimethylformamide at Various Temperatures

1998 ◽  
Vol 63 (4) ◽  
pp. 507-514
Author(s):  
Madan L. Parmar ◽  
Ch. V. Nageshwara Rao ◽  
Suresh Chand Attri
Keyword(s):  
Partial Molar Volumes ◽  
Water Systems ◽  
Molar Volumes ◽  
Density Measurements ◽  
Solution Density ◽  
Aluminium Sulfate ◽  
Ion Interactions

Partial molar volumes of ammonium aluminium sulfate and potassium aluminium sulfate in DMF-water mixtures (5-20 wt.% of DMF) have been determined from solution density measurements at various temperatures and electrolyte concentrations. The data were evaluated by using Masson equation and the obtained parameters were interpreted in terms of ion-solvent and ion-ion interactions. Both electrolytes have been found to act as the structure makers/promotors in DMF-water systems.

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