Excess molar volumes and viscosities of binary mixtures of some n-alkoxyethanols with propylamine at 298.15 K

2000 ◽  
Vol 78 (4) ◽  
pp. 427-435 ◽  
Author(s):  
Amalendu Pal ◽  
Sanjay Sharma ◽  
Harsh Kumar
Keyword(s):  
Experimental Data ◽  
Binary Mixtures ◽  
Atmospheric Pressure ◽  
Excess Volume ◽  
Composition Range ◽  
Excess Molar Volumes ◽  
Viscosity Data ◽  
Molar Volumes ◽  
Volume Viscosity

Excess molar volumes (VEm) and dynamic viscosities (η) for five (alkoxyethanol + propylamine) mixtures have been measured as a function of composition at 298.15 K and atmospheric pressure. The alkoxyethanols were 2-methoxyethanol, 2-(2-methoxyethoxy)ethanol, 2-(2-ethoxyethoxy)ethanol, 2-(2-butoxyethoxy)ethanol, and 2-{2-(2-methoxyethoxy)ethoxy}ethanol. The excess molar volumes VEm are all negative over the whole composition range. The viscosity data have been correlated by the methods of Kendall and Monroe, Grunberg and Nissan, Tamura and Kurata, Hind, Katti and Chaudry, and with McAllister correlations. From the experimental data, deviations in the viscosity (Δη) have been calculated. The results are discussed in terms of the interaction between components.Key words: excess volume, viscosity, binary mixtures.

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.

Densities and Excess Molar Volumes of 2-Methoxyethanol/Water Binary Mixtures

1992 ◽  
Vol 45 (7) ◽  
pp. 1109 ◽  
Author(s):  
F Corradini ◽  
G Franchini ◽  
L Marcheselli ◽  
L Tassi ◽  
G Tosi
Keyword(s):  
Experimental Data ◽  
Binary Mixtures ◽  
Excess Volume ◽  
Composition Range ◽  
Excess Molar Volumes ◽  
Solvent System ◽  
Molar Volumes ◽  
Temperature Range ◽  
Empirical Relations ◽  
Kister Equation

Densities (ρ) are reported for the 2-methoxyethanol (component l)/water (component 2) solvent system, over the full composition range (0 ≤ X1 ≤ 1) at temperatures (t) from -10 to +80�C. The experimental data have been fitted by three empirical relations that represent the functions ρ = ρ(t), ρ = ρ(X1), ρ = p(t,X1), and the excess volume values by a Redlich-Kister equation. The 1:2 2-methoxyethanol/water adduct appears to be stable throughout the temperature range.

Excess molar volumes and viscosities of binary mixtures of triethylene glycol dimethyl ether (triglyme) with chloroalkanes at 298.15 K

2000 ◽  
Vol 78 (4) ◽  
pp. 444-448
Author(s):  
Amalendu Pal ◽  
Gurcharan Dass
Keyword(s):  
Binary Mixtures ◽  
Dimethyl Ether ◽  
Atmospheric Pressure ◽  
Excess Volume ◽  
Excess Molar Volumes ◽  
Triethylene Glycol ◽  
Viscosity Deviation ◽  
Molar Volumes ◽  
Glycol Dimethyl Ether ◽  
Volume Viscosity

Excess molar volumes (VEm) and viscosities (η) for mixtures of triethylene glycol dimethyl ether + dichloromethane, + trichloromethane, and + tetrachloromethane have been determined at 298.15 K and atmospheric pressure over the whole concentration range. From the experimental results, deviations in viscosities (Δ ln η) have been calculated. These properties were fitted to the polynomial relations to obtain the coefficients and the standard deviations. The results have been analysed in terms of molecular interactions between components.Key words: experiments, data, excess volume, viscosity deviation, binary mixtures.

Measurements and Theoretical Analysis of Excess Molar Volumes for Binary Mixtures of Dimethyl Sulfoxide with Xylenes

2008 ◽  
Vol 59 (10) ◽  
Author(s):  
Oana Ciocirlan ◽  
Olga Iulian
Keyword(s):  
Experimental Data ◽  
Theoretical Analysis ◽  
Dimethyl Sulfoxide ◽  
Atmospheric Pressure ◽  
Composition Range ◽  
Excess Molar Volumes ◽  
Liquid Mixtures ◽  
Molar Volumes ◽  
Binary Liquid ◽  
Good Agreement

Excess molar volumes, VE, have been measured for binary liquid mixtures of dimethyl sulfoxide (DMSO) with xylenes (o- xylene, m- xylene and p-xylene) at 298.15 K and atmospheric pressure. The excess volumes values were found negative over the entire composition range for all the mixtures. The VE values increase in order: p-xylene[ m-xylene[ o-xylene. The Flory and Prigogine-Flory-Patterson (PFP) thermodynamic theories of solution have been used to analyze the VE data. The calculated VE values were found to be in good agreement with the experimental data.

Excess Molar Volumes of Butyl Acetate+an n-Alkanol at 298.15 K

1985 ◽  
Vol 38 (10) ◽  
pp. 1435 ◽  
Author(s):  
J Ortega ◽  
MI Paz-Andrade ◽  
E Rodriguez-Nunez ◽  
L Romani
Keyword(s):  
Binary Mixtures ◽  
Atmospheric Pressure ◽  
Butyl Acetate ◽  
Composition Range ◽  
Excess Molar Volumes ◽  
Hydrocarbon Chain ◽  
Excess Volumes ◽  
Entire Composition Range ◽  
Specific Interactions ◽  
Molar Volumes

Excess molar volumes VEm at 298.15 K and atmospheric pressure were calculated over the entire composition range from densities measured with a vibrating-tube digital densimeter for the binary mixtures butyl acetate + methanol, + ethanol, + propan-1-ol, + butan-1-ol, + pentan-1- ol, + hexan-1-ol, + heptan-1-ol, + octan-1-ol, + nonan-1-ol and + decan-1-ol. The excess volumes are positive over the entire composition range for these mixtures except the system butyl acetate + methanol, for which all VEm values are negative. The excess volumes show a consistent trend towards more positive values as the length of the hydrocarbon chain of the alkanol increases. The results suggest the presence of specific interactions.

scholarly journals Prediction of excess molar volumes of binary mixtures by Prigogine-Flory-Patterson (PFP) and extended real association solution (ERAS) models

2017 ◽  
Vol 82 (12) ◽  
pp. 1379-1390 ◽  
Author(s):  
Ivona Radovic ◽  
Nikola Grozdanic ◽  
Bojan Djordjevic ◽  
Slobodan Serbanovic ◽  
Mirjana Kijevcanin
Keyword(s):  
Experimental Data ◽  
Theoretical Model ◽  
Binary Mixtures ◽  
Atmospheric Pressure ◽  
Binary Systems ◽  
Excess Molar Volumes ◽  
Molar Volumes ◽  
Eras Model ◽  
Data Points

In this paper, the Prigogine?Flory?Patterson (PFP) theoretical model and the extended real association solution (ERAS) model for the prediction of the excess molar volumes of 17 binary sets of alcohols (methanol, ethanol, propan-1-ol, butan-1-ol, butan-2-ol and pentan-1-ol) with benzene, chlorobenzene, acetonitrile, hexan-1-amine and n-heptane were tested at 298.15 K and atmospheric pressure. The binary sets contained 333 experimental data points for 11 different compounds. The ERAS model demonstrated better correlative characteristics for binary mixtures comparing to PFP model. The ERAS model is successfully applied on all binary systems except ethanol + benzene and propan-1-ol + benzene. PFP model gave less satisfactory results for all systems except butan-1-ol + hexan-1-amine, for which obtained results were acceptable.

Densities and Excess Volumes in Binary Mixtures of Heptane with 1-Chloropropane, 1-Chlorobutane, 1-Chloropentane, or 1-Chlorohexane at 298.15 K

1999 ◽  
Vol 64 (3) ◽  
pp. 495-501 ◽  
Author(s):  
Éva Kovács ◽  
Jan Linek
Keyword(s):  
Maximum Likelihood ◽  
Binary Mixtures ◽  
Fourth Order ◽  
Atmospheric Pressure ◽  
Composition Range ◽  
Excess Molar Volumes ◽  
The Other ◽  
Molar Volumes ◽  
Maximum Likelihood Procedure ◽  
Kister Equation

Densities and excess molar volumes, VE, of heptane-1-chloropropane, heptane- 1-chlorobutane, heptane-1-chloropentane, and heptane-1-chlorohexane systems are reported at 298.15 K and atmospheric pressure over the whole composition range. Value of VE was found to be slightly negative at lower mole fractions and slightly positive at higher mole fractions in case of the heptane-1-chlorohexane system. For all the other systems, VE was positive. The VE results were correlated using the fourth-order Redlich-Kister equation, the maximum likelihood procedure being applied for evaluating the adjustable parameters.

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