Viscosities, Densities, and Refractive Indices of Binary Liquid Mixtures

1971 ◽  
Vol 49 (15) ◽  
pp. 2605-2609 ◽  
Author(s):  
Miguel Katz ◽  
Pedro W. Lobo ◽  
A. Sancho Miñano ◽  
Horacio Sólimo
Keyword(s):  
Free Energy ◽  
Hydrogen Bonds ◽  
Excess Volume ◽  
Liquid Mixtures ◽  
Refractive Indices ◽  
Dispersion Forces ◽  
Molar Free Energy ◽  
Excess Viscosity ◽  
Binary Liquid ◽  
Free Energy Of Activation

The viscosities, densities, and refractive indices at 25, 30, 35, and 40 °C were determined for the systems: aniline + toluene (A + T), N,N-dimethylaniline + toluene (DMA + T), and aniline + n-butanol (A + B). From the experimental results the excess volume, excess viscosity, and excess molar free energy of activation of flow were calculated. The deviations from ideality for the excess thermo dynamic functions are more important for the systems (A + T) and (A + B) than for (DMA + T). This fact is explained by the existence of dispersion forces in the mixture and by the presence of hydrogen bonds in pure aniline and pure butanol.

scholarly journals Excess volume and viscosity of binary liquid acid–base mixtures

1976 ◽  
Vol 54 (20) ◽  
pp. 3125-3129 ◽  
Author(s):  
Horacio N. Sólimo ◽  
Roque Riggio ◽  
José A. Espíndola ◽  
Silvia del V. Alonso ◽  
Miguel Katz
Keyword(s):  
Free Energy ◽  
Excess Volume ◽  
Refractive Indices ◽  
Molar Free Energy ◽  
Acid Base ◽  
Excess Viscosity ◽  
Liquid Acid ◽  
Binary Liquid ◽  
Excess Partial Molar Volume ◽  
Free Energy Of Activation

Densities, viscosities, and refractive indices at 25 °C were determined for the systems: o chlorophenol + N,N-dimethylaniline, o-chlorophenol + aniline, o-chlorophenol + m-toluidine, and o-chlorophenol + pyridine. From the experimental results the excess volume, excess viscosity, excess molar free energy of activation of flow, and the excess partial molar volume were calculated. There is evidence of complex formation between o-chlorophenol and the four bases.

Thermodynamic Properties of Binary Liquid Acid–Base Mixtures

1975 ◽  
Vol 53 (9) ◽  
pp. 1258-1262 ◽  
Author(s):  
Horacio N. Sólimo ◽  
Roque Riggio ◽  
Franco Davolio ◽  
Miguel Katz
Keyword(s):  
Propionic Acid ◽  
Excess Volume ◽  
Excess Enthalpy ◽  
Refractive Indices ◽  
Molar Free Energy ◽  
Acid Base ◽  
Excess Viscosity ◽  
Binary Liquid ◽  
Free Energy Of Activation ◽  
Excess Thermodynamic Functions

Viscosities, densities, refractive indices, and enthalpies at 25 °C were determined for the systems: propionic acid + aniline (PA + A ), propionic acid + N,N-dimethylaniline (PA + DMA ), and propionic acid + pyridine (PA + P). From the experimental results the excess volume, excess viscosity, excess molar free energy of activation, and excess enthalpy were calculated. The deviations from ideality for the excess thermodynamic functions are more important for the systems PA + A and PA + P than for PA + DMA. There is evidence for complex formation between propionic acid and aniline in the following molar relation: 2CH3CH2COOH·C6H5NH2.

Viscosities and densities of binary liquid mixtures of m-cresol with substituted anilines. Part 3

1985 ◽  
Vol 63 (5) ◽  
pp. 1024-1030 ◽  
Author(s):  
Ramamurthy Palepu ◽  
Joan Oliver ◽  
Brian MacKinnon
Keyword(s):  
Excess Volume ◽  
Binary Systems ◽  
Partial Molar Volumes ◽  
Liquid Mixtures ◽  
Molar Free Energy ◽  
Substituted Anilines ◽  
Binary Liquid ◽  
Excess Partial Molar Volume ◽  
Free Energy Of Activation ◽  
Different Temperatures

Densities and viscosities were determined for the binary systems of m-cresol with aniline, N-methylaniline, N, N-dimethylaniline, N-ethylaniline, and N, N-diethylaniline at five different temperatures. From the experimental results, the excess volume, excess viscosity, excess molar free energy of activation of flow, excess partial molar volume, and partial molar volumes were calculated. Also various thermodynamic parameters of activation of flow were calculated from the dependence of viscosity on temperature. The deviations from ideality of thermodynamic and transport functions are explained on the basis of molecular interactions between the components of the mixture.

Mixtures of methyl isobutyl ketone with three butanols at various temperatures

1981 ◽  
Vol 59 (24) ◽  
pp. 3305-3308 ◽  
Author(s):  
Roque Riggio ◽  
Juan F. Ramos ◽  
Mariana Hernandez Ubeda ◽  
José A. Espindola
Keyword(s):  
Excess Volume ◽  
Methyl Isobutyl Ketone ◽  
Refractive Indices ◽  
Methyl Isobutyl ◽  
Primary Alcohols ◽  
Molar Free Energy ◽  
Isobutyl Ketone ◽  
Excess Viscosity ◽  
Free Energy Of Activation ◽  
Excess Thermodynamic Function

The viscosities, densities, and refractive indices at 20, 25, 30, and 35 °C were determined for the systems: methyl isobutyl ketone–n-butanol (MIK–B1), methyl isobutyl ketone–sec-butanol (MIK–B2), and methyl isobutyl ketone–isobutanol (MIK–B3). From the experimental results the excess volume, excess viscosity, and excess molar free energy of activation of flow were calculated. The deviations from ideality for the excess thermodynamic function are more important for the system (MIK–B2) than for the systems (MIK–B3) and (MIK–B1). This fact is explained by the existence of hydrogen bonds in the alcohols, stronger in the primary alcohols than in sec-butanol.

Thermodynamic and transport properties of binary liquid systems

1980 ◽  
Vol 58 (9) ◽  
pp. 942-945 ◽  
Author(s):  
Sheo Prakash ◽  
Kandimalla Sivanarayana ◽  
Om Prakash
Keyword(s):  
Methyl Ketone ◽  
Isentropic Compressibility ◽  
Molar Free Energy ◽  
Excess Viscosity ◽  
Binary Liquid ◽  
Ethyl Methyl ◽  
Free Energy Of Activation ◽  
Liquid Systems ◽  
Ethyl Methyl Ketone ◽  
Deviation In Isentropic Compressibility

Densities, viscosities, and sound velocities were determined for the system o-chlorophenol + acetone and o-chlorophenol + ethyl methyl ketone at 25 °C. From the experimental results, the deviation in isentropic compressibility KS, excess molar volume VE, excess viscosity ηE, and excess molar free energy of activation of flow G*E were calculated. The deviations from ideality of the thermodynamic and transport functions are explained on the basis of molecular interactions between the components of the mixture.

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

Excess volumes for binary liquid mixtures of butylamine with aromatic and aliphatic hydrocarbons

1979 ◽  
Vol 57 (15) ◽  
pp. 1915-1918 ◽  
Author(s):  
Abburi Krishnaiah ◽  
Maripuri Sreenivasulu ◽  
Puligundla R. Naidu
Keyword(s):  
Hydrogen Bonds ◽  
Entire Range ◽  
Excess Volume ◽  
Liquid Mixtures ◽  
Binary Liquid Mixtures ◽  
Excess Volumes ◽  
Aliphatic Hydrocarbons ◽  
Volume Data ◽  
Binary Liquid ◽  
Benzene Toluene

Excess volume data for binary liquid mixtures of butylamine with aromatic and aliphatic hydrocarbons were measured as a function of composition dilatometrically at 303.15 and 313.15 K. The hydrocarbons include: benzene, toluene, three isomeric xylenes, hexane, heptane, and octane. The values of VE were found to be positive over the entire range of composition in all the eight systems at both the temperatures. The positive values were ascribed to the break-up of hydrogen bonds in the aggregates of amine by the hydrocarbons.

Viscosities and thermodynamics of viscous flow of binary liquid mixtures of 2-(2-butoxyethoxy)ethanol with aniline and N-alkyl anilines

1992 ◽  
Vol 70 (10) ◽  
pp. 2645-2649 ◽  
Author(s):  
Paul Wiseman ◽  
Murray Heggie ◽  
Ramamurthy Palepu
Keyword(s):  
Liquid Mixtures ◽  
Viscosity Data ◽  
Specific Interactions ◽  
Molar Free Energy ◽  
Substituted Anilines ◽  
Ideal Behavior ◽  
Binary Liquid ◽  
Free Energy Of Activation ◽  
Different Temperatures ◽  
High Degree

Viscosities and densities of binary mixtures containing 2-(2-butoxyethoxy)ethanol with aniline and N-alkyl-substituted anilines have been determined at five different temperatures over the complete concentration range. Excess volumes, viscosities, and excess molar free energy of activation of flow were calculated and the departure from ideal behavior is explained on the basis of specific interactions between the components in these mixtures. McAllister's approach correlates the viscosity data with a significantly high degree of accuracy for all these systems.

Excess volumes, isentropic compressibilities, and viscosities of binary mixtures containing cyclohexene

1990 ◽  
Vol 68 (2) ◽  
pp. 363-368 ◽  
Author(s):  
P. Raja Sekar ◽  
R. Venkateswarlu ◽  
Kalluru S. Reddy
Keyword(s):  
Free Energy ◽  
Liquid Mixtures ◽  
State Theory ◽  
Excess Volumes ◽  
Excess Enthalpies ◽  
Excess Isentropic Compressibilities ◽  
Excess Viscosity ◽  
Isentropic Compressibilities ◽  
Binary Liquid ◽  
Excess Viscosities

Excess volumes, excess isentropic compressibilities, and excess viscosities have been reported for the binary liquid mixtures of cyclohexene with n-hexane, cyclohexane, benzene, trichloromethane, tetrachloromethane, and 1,4-dioxane at 303.15 K. VE results are negative for mixtures of cyclohexene with n-hexane and tetrachloromethane and are positive for the remaining systems. [Formula: see text] values are negative for mixtures of cyclohexene with n-hexane and positive for all other systems. The data of Δ ln η are positive for cyclohexene with cyclohexane and tetrachloromethane, and negative for the remaining systems. Prigogine–Patterson–Flory equation of state theory has been applied to predict excess volumes and excess enthalpies, and the viscosity relations proposed by Bloomfield are used to calculate free energy and free volume contributions to excess viscosity. Keywords: excess volumes, excess isentropic compressibilities, excess viscosities.

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