scholarly journals Viscosities of binary mixtures of toluene with butan-1-ol and 2-methylpropan-2-ol

2005 ◽  
Vol 70 (11) ◽  
pp. 1313-1323 ◽  
Author(s):  
Vasile Dumitrescu ◽  
Octav Pântea
Keyword(s):  
Experimental Data ◽  
Thermodynamic Properties ◽  
Viscous Flow ◽  
Binary Mixtures ◽  
Liquid Mixtures ◽  
Viscosity Coefficients ◽  
Binary Liquid ◽  
Excess Viscosities ◽  
Flow Activation ◽  
Kister Equation

The viscosities of binary liquid mixtures of toluene with butan-1-ol and 2-methylpropan-2-ol have been determined at 298.15, 303.15, 308.15, 313.15 and 318.15 K over the whole concentration range. The Hind, Grunberg-Nissan, Wijk, Auslander and McAllister models were used to calculate the viscosity coefficients and these were compared with the experimental data for the mixtures. Excess viscosities were also calculated and fitted to the Redlich-Kister equation. Various thermodynamic properties of viscous flow activation were determined and their variations with composition are discussed.

Excess molar volumes and viscosities of binary mixtures of some polyethers with propylamine at 298.15 K

2002 ◽  
Vol 80 (5) ◽  
pp. 467-475 ◽  
Author(s):  
Amalendu Pal ◽  
Rakesh Kumar Bhardwaj
Keyword(s):  
Experimental Data ◽  
Viscous Flow ◽  
Binary Mixtures ◽  
Entire Range ◽  
Excess Volume ◽  
Excess Molar Volumes ◽  
Liquid Mixtures ◽  
Molar Volumes ◽  
Binary Liquid ◽  
Volume Viscosity

Excess molar volumes (VmE) and dynamic viscosities (η) have been measured as a function of composition for binary liquid mixtures of propylamine with 2,5-dioxahexane, 2,5,8-trioxanonane, 2,5,8,11-tetraoxadodecane, 3,6,9-trioxaundecane, and 5,8,11-trioxapentadecane at 298.15 K. The excess volumes are positive over the entire range of composition for the systems propylamine + 2,5-dioxahexane, and + 3,6,9-trioxaundecane, negative for the systems propylamine + 2,5,8,11-tetraoxadodecane, and + 5,8,11-trioxapentadecane, and change sign from positive to negative for the remaining system propylamine + 2,5,8-trioxanonane. From the experimental data, deviations in the viscosity (Δln η) and excess energies of activation for viscous flow (ΔG*E) have been derived. These values are positive for all mixtures with the exception of propylamine + 2,5-dioxahexane.Key words : excess volume, viscosity, binary mixtures.

Thermodynamic properties of binary liquid mixtures

1976 ◽  
Vol 54 (14) ◽  
pp. 2280-2282 ◽  
Author(s):  
Murari Venkata Prabhakara Rao ◽  
Puligundla Ramachandra Naidu
Keyword(s):  
Statistical Theory ◽  
Thermodynamic Properties ◽  
Binary Mixtures ◽  
Binary Systems ◽  
Liquid Mixtures ◽  
Excess Volumes ◽  
Diethyl Ketone ◽  
Binary Liquid ◽  
The Third ◽  
Heats Of Mixing

Excess volumes of the three binary mixtures: (1) cyclohexane – diethyl ketone, (2) cyclohexane–benzonitrile, and (3) toluene–benzonitrile have been measured at 303.15 K using a dilatometer. Excess volumes of the first two systems are positive over the whole range of composition and are negative for the third system. The measured excess volumes and the excess heats of mixing reported in the literature for the three binary systems have been analysed in the light of the statistical theory of liquid mixtures developed by Flory. The analysis has shown that the theory in its modified form is approximately applicable to the mixtures cyclohexane–diethylketone and cyclohexane–benzonitrile.

Excess molar volumes and viscosities for the n-decane + 1-chlorodecane system at different temperatures

1993 ◽  
Vol 71 (6) ◽  
pp. 790-795 ◽  
Author(s):  
Mercedes E. F. De Ruiz Holgado ◽  
Cecilia R. De Schaefer ◽  
Franco Davolio ◽  
Miguel Katz
Keyword(s):  
Experimental Data ◽  
Viscous Flow ◽  
Excess Molar Volumes ◽  
Solution Thermodynamics ◽  
Molar Volumes ◽  
Viscosity Coefficients ◽  
Excess Viscosities ◽  
Different Temperatures

Excess molar volumes, excess viscosities, and excess energies of activation for viscous flow have been determined for the n-decane + 1-chlorodecane system at different temperatures, over the whole concentration range. The Prigogine–Flory–Patterson model for solution thermodynamics has been used to calculate the excess molar volumes. Grunberg and Nissan, McAllister, Teja and Rice, and Schrodt and Akel models have been used to calculate viscosity coefficients and these were compared with experimental data for the mixtures.

Non-ideal behaviour of binary liquid mixtures and different approaches to calculate ideal expansibility

2010 ◽  
Vol 75 (2) ◽  
pp. 187-200 ◽  
Author(s):  
Harsh Kumar
Keyword(s):  
Binary Mixtures ◽  
Composition Range ◽  
Excess Molar Volumes ◽  
Liquid Mixtures ◽  
Binary Liquid Mixtures ◽  
Molar Volumes ◽  
Binary Liquid ◽  
Kister Equation

Densities for binary mixtures of cyclopentane with 1-propanol, 1-pentanol, and 1-heptanol over the whole composition range have been measured at temperature 318.15 K. From these densities, excess molar volumes were calculated. All the experimental excess molar volumes were fitted to Redlich–Kister equation and were analyzed with the help of Prigogine–Flory–Patterson theory. Also isobaric expansibilities and their excess counterparts were calculated. Further different approaches were analysed for calculating ideal expansibilities.

scholarly journals Experimental Study of Free Energy of Activation of Flow and Grunberg-Nissan Parameters in Binary Liquid Mixtures

BIBECHANA ◽  
1970 ◽  
Vol 6 ◽  
pp. 9-14
Author(s):  
IS Jha ◽  
RP Koirala ◽  
D Adhikari
Keyword(s):  
Activation Energy ◽  
Experimental Study ◽  
Free Energy ◽  
Binary Mixtures ◽  
Molecular Interactions ◽  
Liquid Mixtures ◽  
Binary Liquid Mixtures ◽  
Binary Liquid ◽  
Free Energy Of Activation ◽  
Excess Viscosities

The binary mixtures of cabontetrachloride with isobutylmethylketone and benzaldehyde were studied at 308.15 by measuring viscosities and densities. The derived and excess viscosities, activation energy of flow and Grunberg-Nissan parameters have been calculated. It was found that these parameters are satisfactorily used to predict the strength and nature of molecular interactions. It was found that the strength of interactions in the systems studied is in the following order: CCl4 + IBMK>CCl4 + BDKeywords: Binary liquid; benzaldehyde; carbontetrachlorideDOI: 10.3126/bibechana.v6i0.3932BIBECHANA Vol. 6, March 2010 pp.9-14

Thermodynamic properties for binary liquid mixtures of 1-chlorobutane+n-alkanes

1991 ◽  
Vol 20 (8) ◽  
pp. 805-816 ◽  
Author(s):  
A. D. Matilla ◽  
G. Tardajos ◽  
E. Junquera ◽  
E. Aicart
Keyword(s):  
Thermodynamic Properties ◽  
Liquid Mixtures ◽  
Binary Liquid Mixtures ◽  
Binary Liquid

Density, speed of sound and derived thermodynamic properties of binary liquid mixtures of 1-chlorohexane with toluene and tetradecane under high pressures

2021 ◽  
Vol 154 ◽  
pp. 106329
Author(s):  
Alexander P. Shchamialiou ◽  
Vladimir S. Samuilov ◽  
Nadejda V. Holubeva ◽  
Dana Drăgoescu ◽  
Florinela Sîrbu
Keyword(s):  
Thermodynamic Properties ◽  
Speed Of Sound ◽  
High Pressures ◽  
Liquid Mixtures ◽  
Binary Liquid Mixtures ◽  
Binary Liquid
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