Excess molar volumes and viscosities of binary mixtures of propylene carbonate with (C5–C8) n-alkanols at 298.15 K

1997 ◽  
Vol 75 (12) ◽  
pp. 1890-1895 ◽  
Author(s):  
Mohamed M. El-Banna
Keyword(s):  
Propylene Carbonate ◽  
Atmospheric Pressure ◽  
Composition Range ◽  
Excess Molar Volumes ◽  
Type Equation ◽  
Liquid Mixtures ◽  
Intermolecular Hydrogen Bonds ◽  
Molar Volumes ◽  
Two Parameter ◽  
Better Than

Excess molar volumes (VE) and changes in viscosity (Δη) have been determined for binary liquid mixtures of propylene carbonate (PC) with (C5–C8) n-alkanols at 298.15 K and atmospheric pressure, over the whole composition range. The positive VE corresponding to negative Δη, for all the mixtures studied, suggests the presence of specific interactions, namely, involving the intermolecular hydrogen bonds. The results are correlated by means of a Redlich–Kister type equation. The fitting of viscosities to the parameter (N12) of Nissan–Grunberg or to the (H12) parameter of Hind et al. provides models for the dynamic viscosities; the two-parameter (v12 and v12) McAllister equation and the three parameters (a, b, and c) Heric–Brewer provide models for the kinematic viscosities, allowing us to gain greater knowledge of the interactions between unlike molecules. However, this analysis suggests that the McAllister model fits the data better than the others. Keywords: excess volumes, propylene carbonate, n-alkanols, liquid mixtures, hydrogen bonding.

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.

scholarly journals DENSITIES AND EXCESS MOLAR VOLUMES FOR BINARY SOLUTION OF WATER + ETHANOL, + METHANOL AND + PROPANOL FROM (283.15 TO 313.15) K

2014 ◽  
Vol 44 (2) ◽  
pp. 163-166
Author(s):  
A. SHALMASHI ◽  
F. AMANI
Keyword(s):  
Atmospheric Pressure ◽  
Composition Range ◽  
Binary Solution ◽  
Excess Molar Volumes ◽  
Molar Volumes ◽  
Binary Solutions ◽  
Standard Deviations ◽  
Increasing Temperature

Densities for binary solutions of three alcohol (Ethanol, Methanol and propanol) with water over the whole composition range have been measured at temperatures from (283.15 to 313.15) K in 10 K intervals and atmospheric pressure (101.3 kPa). From these data, the excess molar volumes (VE) were calculated. The excess molar volumes for these systems were found to be negative across the whole composition and at all temperatures investigated. The excess molar volumes for ethanol and propanol + water become less negative with increasing temperature and conversely the excess molar volumes for methanol+ water become more negative with increasing temperature. The standard deviations (σ) for densities were calculated that ranged from 0.0000 to 0.001.

Intermolecular Interaction for Binary Mixtures of Propylene Carbonate with Acetonitrile, Dimethyl Carbonate, Diethyl Carbonate at Different Temperatures: Density and Viscosity

2017 ◽  
Vol 232 (1) ◽  
Author(s):  
Wei Song ◽  
Hai Zhang ◽  
Zhenyu Yang ◽  
Juan Wang ◽  
Zishuang Yue ◽  
...  
Keyword(s):  
Intermolecular Interaction ◽  
Binary Mixtures ◽  
Propylene Carbonate ◽  
Atmospheric Pressure ◽  
Dimethyl Carbonate ◽  
Excess Molar Volumes ◽  
Diethyl Carbonate ◽  
Molar Volumes ◽  
Different Temperatures

AbstractIn this work, the experimental densities and viscosities have been determined for (propylene carbonate+acetonitrile, or dimethyl carbonate, or diethyl carbonate) binary mixtures over the whole concentration range at temperatures (293.15–333.15 K) and the atmospheric pressure. Excess molar volumes (

Article

1998 ◽  
Vol 76 (12) ◽  
pp. 1860-1866
Author(s):  
Mohamed M El-Banna ◽  
Mervette M El-Batouti
Keyword(s):  
Atmospheric Pressure ◽  
Entire Range ◽  
Excess Molar Volumes ◽  
Liquid Mixtures ◽  
Molar Volumes ◽  
Density Measurements ◽  
Binary Liquid ◽  
Fitted Parameter ◽  
Different Temperatures ◽  
Alkane Chain

Excess molar volumes, VE, for three binary liquid mixtures of cyclohexane + n-dodecane, n-tetradecane, and n-hexadecane were determined from density measurements at seven different temperatures in the range from 283.15 to 313.15 K and atmospheric pressure, over the entire range of mole fractions. The VE values were derived and the results show a regular negative pattern of behaviour for each of the three sets of the binary system. For cyclohexane, the magnitude of VE increases with the alkane chain length. The Prigogine-Flory-Patterson theory was applied to analyze the experimental behaviour by calculating three different contributions to VE, i.e., interactional, free volume, and internal pressure. The theory gives a representation of the main feature of the systems studied by using a fitted parameter to describe the behaviour throughout the composition range.Key words: excess molar volumes, binary mixtures, cyclohexane, n-dodecane, n-tetradecane, n-hexadecane, Prigogine-Flory-Patterson theory.

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.

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.

Excess molar volumes of binary mixtures with 2-pentanone and 1-chloroalkanes at 298.15 and 308.15 K

1995 ◽  
Vol 73 (1) ◽  
pp. 139-145 ◽  
Author(s):  
José M. Pico ◽  
Consolaciôn P. Menaut ◽  
Eulogio Jiménez ◽  
José L. Legido ◽  
Josefa Fernàndez ◽  
...  
Keyword(s):  
Binary Mixtures ◽  
Atmospheric Pressure ◽  
Excess Molar Volumes ◽  
Liquid Mixtures ◽  
Excess Volumes ◽  
Excess Molar Enthalpies ◽  
Molar Volumes ◽  
Normal Atmospheric Pressure ◽  
Theoretical Results

Excess molar volumes υE at 298.15 and 308.15 K and normal atmospheric pressure for the binary mixtures 2-pentanone + 1-chloroalkane (from 1-chlorobutane to 1-chlorooctane) were obtained from measurements of the density with an Anton Paar densimeter. The υE values for all mixtures were positive, and increase as the 1-chloroalkane length increases. Excess molar volumes depend slightly on the temperature. The same characteristics were found previously for the excess molar enthalpies of the same mixtures. Experimental υE values are compared with theoretical results using the Prigogine–Flory–Patterson model. Keywords: thermodynamics, liquid mixtures, excess volumes, ketones, chloroalkanes.

scholarly journals APPLICATION OF PRIGOGINE-FLORY-PATTERSON THEORY TO EXCESS MOLAR VOLUMES OF BINARY LIQUID MIXTURES OF {METHYL TERT BUTYL ETHER (MTBE) + ALCOHOLS} AT DIFFERENT TEMPERATURES AND ATMOSPHERIC PRESSURE

2018 ◽  
Vol 4 (1) ◽  
pp. 0085-0091
Author(s):  
Heloisa Emi Hoga ◽  
Ricardo Belchior Torres
Keyword(s):  
Atmospheric Pressure ◽  
Excess Molar Volumes ◽  
Liquid Mixtures ◽  
Binary Liquid Mixtures ◽  
Methyl Tert Butyl Ether ◽  
Butyl Ether ◽  
Pfp Theory ◽  
Molar Volumes ◽  
Binary Liquid ◽  
Different Temperatures

No presente estudo, dados experimentais de volume molar excesso ( ) de soluções líquidas binárias de metil terc butl éter (MTBE) + metanol, ou + etanol, ou + 1-propanol, ou + 2-propanol, ou + 1-butanol, ou + 1-pentanol, ou + 1-hexanol foram usados para testar a aplicabilidade da Teoria Prigogine-Flory-Patterson (PFP Theory), como função da composição a diferentes temperaturas e pressão atmosférica. De acordo com o modelo, a contribuição interacional é a mais importante para descrever o comportamento do  . Foi observado que a Teoria PFP reproduz os dados experimentais usando apenas um parâmetro ajustável. Para todos os sistemas estudados foi obtida uma boa concordância entre os resultados experimentais e a Teoria.

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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