Excess molar volumes and excess partial molar volumes of {xCH3O(CH2)2OH +(1 −x)H(CH2)νO(CH2)2O(CH2)2OH}, (ν= 1, 2, and 4) at the temperature 298.15 K

1996 ◽  
Vol 28 (2) ◽  
pp. 227-232 ◽  
Author(s):  
A. Pal ◽  
W. Singh
Keyword(s):  
Excess Molar Volumes ◽  
Partial Molar Volumes ◽  
Molar Volumes ◽  
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.

Volumetric properties of (water + diethanolamine) systems

1995 ◽  
Vol 73 (9) ◽  
pp. 1514-1519 ◽  
Author(s):  
Yadollah Maham ◽  
Tjoon T. Teng ◽  
Alan E. Mather ◽  
Loren G. Hepler
Keyword(s):  
Thermal Expansion ◽  
Aqueous Solutions ◽  
Molecular Interactions ◽  
Full Range ◽  
Excess Molar Volumes ◽  
Partial Molar Volumes ◽  
Volumetric Properties ◽  
Molar Volumes ◽  
Organic Systems

Densities of completely miscible (water + methyldiethanolamine) and (water + ethyldiethanolamine) systems have been measured over the full range of compositions at temperatures from 25 to 80 °C. Results of these measurements have been used in calculating excess molar volumes and partial molar volumes of each component. We have also identified different measures of the thermal expansion of these systems and have calculated some of these derivative quantities. The partial molar volumes and their derivatives with respect to temperature provide a basis for extending our understanding of molecular interactions in these (water + organic) systems. Keywords: diethanolamines, excess molar volumes, partial molar volumes, expansivities, aqueous solutions.

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
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