scholarly journals Densities, viscosities, and refractive indexes of tert-butyl methyl ether + butyl alcohols at 298.15 K

1995 ◽  
Vol 73 (3) ◽  
pp. 431-434 ◽  
Author(s):  
Roque Riggio ◽  
Hector E. Martinez ◽  
Norma Z. de Salas ◽  
Juan F. Ramos
Keyword(s):  
Free Energy ◽  
Molar Volume ◽  
Methyl Ether ◽  
Atmospheric Pressure ◽  
Binary Systems ◽  
Composition Range ◽  
Excess Properties ◽  
Tert Butyl ◽  
Volume Viscosity ◽  
Butyl Methyl Ether

Densities, viscosities, and refractive indexes of three binary systems, tert-butyl methyl ether +n-butanol, +sec-butanol, +isobutanol, have been determined at 298.15 K and atmospheric pressure over the complete composition range. We also report calculated excess properties including molar volume, viscosity, and Gibbs free energy for the activation of flow for these systems. Keywords: binary systems, excess properties.

Excess properties for acetophenone + butanols at 298.15 K

2001 ◽  
Vol 79 (1) ◽  
pp. 50-53
Author(s):  
Roque Riggio ◽  
Juan F Ramos ◽  
Hector E Martinez
Keyword(s):  
Free Energy ◽  
Molecular Interactions ◽  
Atmospheric Pressure ◽  
Binary Systems ◽  
Composition Range ◽  
Excess Properties ◽  
Excess Functions ◽  
Experimental Measurements ◽  
Free Energy Of Activation ◽  
Volume Viscosity

Densities, viscosities, and refractive indexes of binary systems acetophenone + n-butanol, + sec-butanol, and + 2-methyl-1-propanol have been measured at 298.15 K and atmospheric pressure, over the whole composition range. The excess values of molar volume, viscosity, Gibbs free energy of activation of viscous flow, and internal pressure were calculated from experimental measurements. Based on the variations of the excess functions with composition, conclusions about the molecular interactions in these kinds of mixtures were obtained.Key words: excess properties, binary mixtures, butanols, acetophenone.

Excess properties for cyclohexanone + butanols at 298.15 K

1995 ◽  
Vol 73 (8) ◽  
pp. 1274-1277 ◽  
Author(s):  
Roque Riggio ◽  
Hector E. Martinez ◽  
Norma Z. De Salas ◽  
Miriam D. De Toigo ◽  
Juan F. Ramos
Keyword(s):  
Free Energy ◽  
Molecular Interactions ◽  
Atmospheric Pressure ◽  
Binary Systems ◽  
Composition Range ◽  
Excess Properties ◽  
Excess Functions ◽  
Experimental Measurements ◽  
Free Energy Of Activation ◽  
Volume Viscosity

Densities, viscosities, and refractive indexes of the binary systems cyclohexanone + n-butanol, + sec-butanol, and + 2-methyl-1-propanol have been measured at 298.15 K and atmospheric pressure, over the whole composition range. The excess values of molar volume, viscosity, Gibbs free energy of activation of viscous flow, and internal pressure were calculated from experimental measurements. Based on the variations of the excess functions with composition, conclusions about the molecular interactions in these kinds of mixtures were obtained. Keywords: excess properties, binary mixtures, butanols, cyclohexanone.

scholarly journals Densities, Viscosities and Excess Properties for Dimethyl Sulfoxide with Diethylene Glycol and Methyldiethanolamine at Different Temperatures

2021 ◽  
Vol 12 (1) ◽  
pp. 116
Author(s):  
Maria Magdalena Budeanu ◽  
Vasile Dumitrescu
Keyword(s):  
Molar Volume ◽  
Diethylene Glycol ◽  
Atmospheric Pressure ◽  
Binary Systems ◽  
Partial Molar Volumes ◽  
Excess Properties ◽  
Excess Functions ◽  
Viscosity Deviation ◽  
Different Temperatures ◽  
Experimental Density

Densities and viscosities of the binary systems dimethylsulfoxide with diethylene glycol and methyldiethanolamine were measured at temperatures ranging from 293.15 to 313.15 K, at atmospheric pressure and over the entire composition range. The experimental density data was correlated as a function of composition using Belda’s and Herraez’s equations, and as a function of temperature and composition using the models of Emmerling et al. and Gonzalez-Olmos-Iglesias. The viscosity results were fitted to the Grunberg-Nissan, Heric-Brewer, Wilson, Noda, and Ishida and Eyring-NRTL equations. The values of viscosity deviation (), excess molar volume (VE), partial molar volumes ( and ) and apparent molar volume ( and ) were determined. The excess functions of the binary systems were fitted to the polynomial equations. The values of thermodynamic functions of activation of viscous flow were calculated and discussed.

Densities, Viscosities and Excess Properties of Binary Mixtures of 2-Methoxy-2-methylpropane with iso-Propanol

2018 ◽  
Vol 69 (6) ◽  
pp. 1298-1302
Author(s):  
Maria Magdalena Budeanu ◽  
Vasile Dumitrescu ◽  
Simona Radu ◽  
Alexandru Camenita
Keyword(s):  
Gibbs Energy ◽  
Linear Equation ◽  
Atmospheric Pressure ◽  
Binary Systems ◽  
Composition Range ◽  
Molar Gibbs Energy ◽  
Excess Properties ◽  
Excess Functions ◽  
Experimental Measurements ◽  
Kister Equation

Densities (r) and viscosities (h) of the binary systems 2-Methoxy-2-methylpropane with iso-propanol were measured at temperatures (288.15, 293.15, 298.15, 303.15 and 308.15) K and atmospheric pressure, over the whole composition range. The density and viscosity of the solutions were correlated with the temperature with a linear equation, respectively with Guzman�s equation. The excess values of molar volume (VE), viscosity (hE) and molar Gibbs energy (DG*E) were calculated from experimental measurements. The excess functions of the binary systems were fitted to Redlich-Kister equation. Viscosity results were fitted to the equations of Grunberg-Nissan, Heric-Brewer, Jouyban-Acree and McAllister.

scholarly journals Densities and viscosities for binary mixtures of n-heptane with alcohols at different temperatures

2017 ◽  
Vol 82 (7-8) ◽  
pp. 891-903 ◽  
Author(s):  
Maria Budeanu ◽  
Vasile Dumitrescu
Keyword(s):  
Molar Volume ◽  
Excess Molar Volume ◽  
Atmospheric Pressure ◽  
Binary Systems ◽  
Composition Range ◽  
Excess Functions ◽  
Experimental Measurements ◽  
Different Temperatures ◽  
The One ◽  
Kister Equation

Densities (?) and viscosities (?) of the binary systems n-heptane with alcohols (ethanol, propan-1-ol and propan-2-ol) were measured at temperatures between 288.15 and 308.15 K and at atmospheric pressure, over the whole composition range. The excess values of molar volume (VE) and viscosity (?E) were calculated from experimental measurements. The excess functions of the binary systems were fitted to Redlich?Kister Equation. Comparison between experimental excess molar volume and the one calculated from Flory and Prigogine?Flory?Patterson theories, has also been done. The viscosity results were fitted to the equations of Grunberg?Nissan, Heric?Brewer, Jouyban?Acree and McAllister. Also, the activation energies of viscous flow have been obtained and their variations with compositions have been discussed.

Experimental Study and Correlation Models of the Density and Viscosity of 2-Methoxy-2-methylpropane with n-propanol

2017 ◽  
Vol 68 (6) ◽  
pp. 1177-1181 ◽  
Author(s):  
Maria Magdalena Budeanu ◽  
Vasile Dumitrescu
Keyword(s):  
Experimental Study ◽  
Free Energy ◽  
Binary Mixtures ◽  
Atmospheric Pressure ◽  
Binary Systems ◽  
Composition Range ◽  
Activation Parameters ◽  
Liquid Density ◽  
Thermodynamic Activation Parameters ◽  
Correlation Models

Densities (r) and viscosities (h) of the binary systems 2-Methoxy-2-methylpropane with n-propanol were measured at temperatures 288.15, 293.15, 298.15, 303.15 and 308.15 K and atmospheric pressure, over the whole composition range. Belda, Herraez, Emmerling et al. and Gonzalez-Olmos-Iglesias models were used to correlate the densities of binary mixtures. The Mchaweh-Nasrifar-Mashfeghian, Hankinson-Thomson, Yamada-Gunn and Reid et al. models were used to estimate the liquid density of the binary mixtures. Viscosity results were fitted to the equations of Grunberg-Nissan, Heric-Brewer, Jouyban-Acree and McAllister. The thermodynamic activation parameters, free energy, DG�, enthalpy, DH� and entropy, DS� for viscous flow have been estimated and their variations with compositions have been discussed.

tert-Butyl methyl ether C5H12O + C8H18 2,2,4-Trimethylpentane

2007 ◽  
pp. 1-1
Author(s):  
I. Wichterle ◽  
J. Linek ◽  
Z. Wagner ◽  
J.-C. Fontaine ◽  
K. Sosnkowska-Kehiaian ◽  
...  
Keyword(s):  
Methyl Ether ◽  
Tert Butyl ◽  
Butyl Methyl Ether

tert-Butyl methyl ether C5H12O + C8H18 2,2,4-Trimethylpentane

2007 ◽  
pp. 1-1
Author(s):  
I. Wichterle ◽  
J. Linek ◽  
Z. Wagner ◽  
J.-C. Fontaine ◽  
K. Sosnkowska-Kehiaian ◽  
...  
Keyword(s):  
Methyl Ether ◽  
Tert Butyl ◽  
Butyl Methyl Ether
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