Excess molar volumes and excess viscosities of 2-propanol + methylacetate + dichloromethane system at 298.15 K

1988 ◽  
Vol 66 (3) ◽  
pp. 367-370 ◽  
Author(s):  
Inès L. Acevedo ◽  
Miguel A. Postigo ◽  
Miguel Katz
Keyword(s):  
Binary Mixtures ◽  
Excess Molar Volumes ◽  
Empirical Correlation ◽  
Excess Volumes ◽  
Experimental Results ◽  
Excess Properties ◽  
Molar Volumes ◽  
Molar Excess ◽  
Excess Viscosities ◽  
Molar Excess Volumes

Densities and viscosities were determined for the 2-propanol + methylacetate + dichloromethane system at 298.15 K. From the experimental results, molar excess volumes and excess viscosities were calculated. Different expressions exist in the literature to predict these excess properties from the binary mixtures. The empirical correlation of Tsao–Smith and Toop is the best for this system.

Excess molar volumes and excess viscosities of ternary mixtures (2-butanol + 1-chlorobutane + 1-butylamine) and (2-methyl-2-propanol + 1-chlorobutane + 1-butylamine) at 298. 15 K

1995 ◽  
Vol 73 (6) ◽  
pp. 896-901 ◽  
Author(s):  
M. Domínguez ◽  
A. Camacho ◽  
M. C. López ◽  
F. M. Royo ◽  
J. S. Urieta
Keyword(s):  
Binary Mixtures ◽  
Excess Molar Volumes ◽  
Polynomial Equation ◽  
Experimental Results ◽  
Ternary Mixtures ◽  
Excess Properties ◽  
Empirical Equations ◽  
Molar Volumes ◽  
Excess Viscosities ◽  
Binary And Ternary Mixtures

Excess molar volumes and excess viscosities, at 298.15 K, of the ternary mixtures (2-butanol + 1-chlorobutane + 1-butylamine) and (2-methyl-2-propanol + 1-chlorobutane + 1-butylamine) and of the binary mixtures (2-butanol + 1-butylamine), (2-methyl-2-propanol + 1-butylamine), and (1-chlorobutane + 1-butylamine) have been measured. The ternary excess properties were fitted to the polynomial equation of Cibulka. The experimental results were also compared with those predicted by the empirical equations of Redlich–Kister, Tsao–Smith, Kohler, and Colinet. Keywords: binary and ternary mixtures, excess properties, 2-butanol, 2-methyl-2-propanol, 1-chlorobutane, 1-butylamine.

Densities, refractive indices and excess properties of mixing of the n-octanol + 1,4-dioxane + 2-butanol ternary system at 298.15 K

2000 ◽  
Vol 78 (8) ◽  
pp. 1121-1127 ◽  
Author(s):  
Alberto G Camacho ◽  
Miguel A Postigo ◽  
Graciela C Pedrosa ◽  
Inés L Acevedo ◽  
Miguel Katz
Keyword(s):  
Ternary System ◽  
Physical Properties ◽  
Binary Mixtures ◽  
Binary Data ◽  
Excess Molar Volumes ◽  
Excess Properties ◽  
Refractive Indices ◽  
Molar Volumes ◽  
Experimental Values

Excess molar volumes and excess refractive indices of the n-octanol + 1,4-dioxane + 2-butanol system and the three corresponding binary mixtures have been determined at 298.15 K by measuring densities and refractive indices. Different expressions exist in the literature to predict these excess properties from binary data. An estimation of excess molar volumes is also evaluated using a modified Heller equation which depends on the refractive indices of the mixtures. A comparison of the predictions of different methods with the experimental values of the physical properties has been made.Key words: excess molar volumes, densities, refractive indices, n-octanol, 1,4-dioxane, 2-butanol, ternary system.

Thermodynamics of binary mixtures of 1,2-dichloroethane with aromatic hydrocarbons

1980 ◽  
Vol 58 (18) ◽  
pp. 1902-1905 ◽  
Author(s):  
Ram K. Nigam ◽  
Prem P. Singh ◽  
Krishan C. Singh ◽  
Mohan Singh ◽  
Ruchi Mishra
Keyword(s):  
Binary Mixtures ◽  
Aromatic Hydrocarbons ◽  
Vapour Pressure ◽  
Excess Volumes ◽  
Equimolar Mixture ◽  
Excess Enthalpies ◽  
Molar Excess ◽  
Experimental Values ◽  
Molar Excess Volumes

Molar excess volumes, VE at 298.15 and 308.15 K, molar excess enthalpies HE at 308.15 K, and total vapour pressure at 298.15 and 308.15 K. have been measured for binary mixtures of 1,2-dichloroethane with aromatic hydrocarbons. The VE and HE data for an equimolar mixture at 308.15 K only have been utilized to predict VE, HE, and TSE values (using Sanchez and Lacombe theory) for these mixtures as a function of temperature and composition. The agreement between the predicted and the corresponding experimental values is good so far as VE and HE data are concerned but the same is not true of the TSE values.

Excess molar volumes and excess viscosities of n-butylamine + 1,4-dioxane + carbon tetrachloride system at 298.15 K

1991 ◽  
Vol 69 (6) ◽  
pp. 1006-1010 ◽  
Author(s):  
Inés L. Acevedo ◽  
Graciela C. Pedrosa ◽  
Miguel Katz
Keyword(s):  
Carbon Tetrachloride ◽  
Key Words ◽  
Ternary Mixture ◽  
Binary Data ◽  
Excess Molar Volumes ◽  
Excess Properties ◽  
Excess Viscosities ◽  
Key Words Density ◽  
Analytical Expressions ◽  
Molar Excess Volumes

Densities and viscosities were determined for the n-butylamine + 1,4-dioxane + carbon tetrachloride system at 298.15 K. Molar excess volumes and excess viscosities were calculated from the experimental results. Analytical expressions can be used to predict these excess properties from binary data, the empirical correlation of Cibulka being the best for this system. Key words: density; mixture of n-butylamine + 1,4-dioxane + carbon tetrachloride; viscosity, mixture of n-butylamine + 1,4-dioxane + carbon tetrachloride; excess properties of ternary mixture.

Pycnometric determination of densities and excess volumes of binary mixtures containing at least one associating component

1990 ◽  
Vol 55 (10) ◽  
pp. 2395-2403 ◽  
Author(s):  
Kamila Chýlková ◽  
Ivona Malijevská
Keyword(s):  
Acetic Acid ◽  
Propionic Acid ◽  
Binary Mixtures ◽  
Trifluoroacetic Acid ◽  
Excess Volume ◽  
Excess Volumes ◽  
Molar Excess ◽  
Molar Excess Volumes

Densities at 20 °C and molar excess volumes calculated from them are reported in the work for the mixtures of the substances: propionic acid-n-heptane, propionic acid-benzene, trifluoroacetic acid-benzene, propionic acid-cyclohexane, acetic acid-cyclohexane, acetic acid-trifluoroacetic acid, acetic acid-propionic acid, and propionic acid-trifluoroacetic acid. For the last system mentioned, a strange dependence of excess volume on composition was found which is noted for three local extremes. The dependences of excess volume on composition are correlated by the Redlich-Kister polynomial.

Excess properties for acetylacetone + pentanols systems at 298.15 K

1992 ◽  
Vol 70 (12) ◽  
pp. 2859-2863 ◽  
Author(s):  
Roque Riggio ◽  
Hector E. Martinez ◽  
Norma Z. de Salas
Keyword(s):  
Molecular Interactions ◽  
Excess Molar Volumes ◽  
Isoamyl Alcohol ◽  
Amyl Alcohol ◽  
Excess Properties ◽  
Excess Functions ◽  
Free Energies ◽  
Molar Volumes ◽  
Excess Viscosities ◽  
Internal Pressures

From experimental densities, viscosities, and refractive indexes for the acetylacetone + 1-pentanol, + 2-Pentanol, + isoamyl alcohol, and + tert-amyl alcohol systems at 298.15 K, the excess molar volumes, excess viscosities, excess molar free energies of activation of flow, and excess internal pressures were calculated over the whole concentration range. Conclusions about the molecular interactions in these mixtures were drawn from the variations of the excess functions with the composition.

Pyridine—pyridine interactions in binary mixtures of nonelectrolytes: Molar excess volumes

1984 ◽  
Vol 16 (1) ◽  
pp. 25-39 ◽  
Author(s):  
R.K. Nigam ◽  
P.P. Singh ◽  
Sadhna Aggarwal ◽  
S.P. Sharma
Keyword(s):  
Binary Mixtures ◽  
Excess Volumes ◽  
Molar Excess ◽  
Molar Excess Volumes

Excess molar volumes, speeds of sound, and isentropic compressibilities of binary mixtures of furfural with some aromatic hydrocarbons

1988 ◽  
Vol 66 (5) ◽  
pp. 1295-1298 ◽  
Author(s):  
Homendra Naorem ◽  
S. K. Suri
Keyword(s):  
Binary Mixtures ◽  
Aromatic Hydrocarbons ◽  
Excess Molar Volumes ◽  
Isentropic Compressibilities ◽  
Molar Excess ◽  
Geometric Factors ◽  
Volumes Of Mixing ◽  
Benzene Toluene ◽  
Molar Excess Volumes ◽  
Solution Behaviour

Molar excess volumes of mixing and isentropic compressibilities for the binary mixtures of furfural with benzene, toluene, ethylbenzene, and o-, m-, and p-xylenes at 308.15 K have been measured. The results reveal that geometric factors are predominant in determining the solution behaviour of the binary mixtures under investigation.

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.

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