Heats of mixing of butanone and chloroform with alkanes: Binary systems

1978 ◽  
Vol 43 (3) ◽  
pp. 829-836 ◽  
Author(s):  
Ján Biroš ◽  
Antonín Živný ◽  
Julius Pouchlý
Keyword(s):  
Binary Systems ◽  
Heats Of Mixing

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.

Simultaneous correlation of vapour-liquid equilibrium and heats of mixing and prediction of excess heat capacities. The systems benzene-n-alcohols and cyclohexane-n-alcohols

1979 ◽  
Vol 44 (3) ◽  
pp. 808-822 ◽  
Author(s):  
Vladimír Dohnal ◽  
Jaroslav Vinš ◽  
Robert Holub
Keyword(s):  
Experimental Data ◽  
Binary Systems ◽  
Heat Capacities ◽  
Heat Of Mixing ◽  
Data Sets ◽  
Wilson Equation ◽  
Excess Heat ◽  
Excess Heat Capacities ◽  
Heats Of Mixing ◽  
Quadratic Temperature

The Wilson, the enthalpic Wilson and the Orye equations were used for the simultaneous correlation of extensive data sets on VLE and heats of mixing of eight binary systems hydrocarbon-n-alcohol, viz. benzene-methanol, -ethanol, -n-propanol, -n-butanol, cyclohexane-ethanol, -n-propanol, -n-butanol and n-heptane-ethanol. The expected quadratic temperature dependence of parameters of these equations makes a good simultaneous description possible of excess free enthalpy and heat of mixing as a function of temperature. The Wilson equation gives demonstrably the best description of the experimental data. All the equations were as well used to predict excess heat capacities for the systems listed and the confidence intervals were estimated for the predicted results. The comparison with experimental data for four of these systems shows that the predicted excess heat capacities are in general in good agreement with the experiment; however, the Wilson equation yielded again the best results.

THE EQUILIBRIUM DIAGRAMS, HEATS OF MIXING, DIPOLE MOMENTS, DENSITIES, AND BOILING POINTS OF THE SYSTEM ACETONE–CHLOROFORM–BENZENE

1961 ◽  
Vol 39 (4) ◽  
pp. 735-744 ◽  
Author(s):  
A. N. Campbell ◽  
E. M. Kartzmark ◽  
H. Friesen
Keyword(s):  
Solid State ◽  
Boiling Point ◽  
Binary Systems ◽  
Dipole Moments ◽  
Equilibrium Diagram ◽  
Ternary Mixtures ◽  
Heat Of Mixing ◽  
High Concentration ◽  
Boiling Points ◽  
Heats Of Mixing

The equilibrium diagrams show that a compound, stable in the solid state, is formed in the system chloroform–acetone, but no compound is formed in the binary systems chloroform–benzene and acetone–benzene. The ternary equilibrium diagram, the heats of mixing, and the dipole moments, all show that this compound continues to exist in the presence of benzene, up to a high concentration of benzene. Since a series of ternary mixtures is shown to exist having zero heat of mixing, it was thought that this series of mixtures might behave in a pseudoideal manner, but the determinations of density (molar volume) and boiling point show that this is not so.

Volume Changes on Mixing. II. Systems Containing Acetone, Acetonitrile, and Nitromethane

1962 ◽  
Vol 15 (1) ◽  
pp. 9 ◽  
Author(s):  
I Brown ◽  
F Smith
Keyword(s):  
Concentration Dependence ◽  
Binary Systems ◽  
Excess Entropy ◽  
Volume Changes ◽  
Polar Components ◽  
Entropy Changes ◽  
Heats Of Mixing ◽  
Equilibrium Data

The volume changes on mixing have been measured at 25, 35, and 45 �C for the following binary systems : acetone+acetonitrile, acetone+nitromethane, acetonitrile+nitromethane and each of these polar components with benzene and with carbon tetrachloride.The sign and concentration dependence of the volume changes on mixing of these systems follow closely the excess entropy changes on mixing calculated from the liquid-vapour equilibrium data and heats of mixing previously measured in these laboratories.

Heats of mixing: Alcohol- aromatic binary systems at 25°, 35°, and 45°c.

AIChE Journal ◽  
1961 ◽  
Vol 7 (2) ◽  
pp. 190-195 ◽  
Author(s):  
Robert V. Mrazek ◽  
H. C. Van Ness
Keyword(s):  
Binary Systems ◽  
Heats Of Mixing

The determination of heats of mixing

1952 ◽  
Vol 212 (1110) ◽  
pp. 406-425 ◽  
Keyword(s):  
Carbon Tetrachloride ◽  
Binary Systems ◽  
Methylene Chloride ◽  
Vapour Phase ◽  
Ethylene Dichloride ◽  
Binary Liquid ◽  
Heats Of Mixing ◽  
Liquid Systems ◽  
Improved Accuracy

A calorimeter has been designed for measuring the heats of mixing of binary liquid systems, which eliminates the need to correct for changes in the composition of the vapour phase on mixing. Improved accuracy has thus been obtained. Heats of mixing have been measured for the three binary systems formed from the three components carbon tetrachloride, chloroform and methylene chloride, and also for the systems benzene + carbon tetrachloride and benzene + ethylene dichloride. Reports that the last system is ideal have been disproved.

Concentration and temperature dependence of heats of mixing of 1-butanol, 2-butanol, and 2-methyl-2-propanol with cyclohexane

1983 ◽  
Vol 48 (12) ◽  
pp. 3482-3494 ◽  
Author(s):  
František Veselý ◽  
Vladimír Dohnal ◽  
Miriam Valentová ◽  
Jiří Pick
Keyword(s):  
Entire Range ◽  
Experimental Error ◽  
Binary Systems ◽  
Enthalpy Of Mixing ◽  
Excess Enthalpies ◽  
Heats Of Mixing ◽  
Maximum Value ◽  
Concentration Dependences ◽  
System 2 ◽  
Isothermal Calorimeter

The concentration dependences of excess enthalpies were measured in an isothermal calorimeter within the range of 25-50 °C at six temperatures for the binary systems 1-butanol-cyclohexane and 2-butanol-cyclohexane and at five temperatures for the system 2-methyl-2-propanol-cyclohexane. A conspicuous temperature and concentration dependence of the maximum value of enthalpy of mixing was found for the latter system. Heats of mixing of all three systems were correlated by the SSF equation. The results of correlation are comparable with the experimental error (0.5%) in the entire range of mole fractions of alcohols.

HEATS OF MIXING AND HEAT CAPACITIES IN THE SYSTEM: ACETIC ACID–CHLOROFORM–WATER, AT 25°

1965 ◽  
Vol 43 (5) ◽  
pp. 1004-1011 ◽  
Author(s):  
A. N. Campbell ◽  
J. M. T. M. Gieskes
Keyword(s):  
Acetic Acid ◽  
Ternary System ◽  
Binary Systems ◽  
Heat Capacities ◽  
Acid Water ◽  
Heats Of Mixing ◽  
Acetic Acid Water

The heats of mixing, HE, and heat capacities, at 25 °C, have been determined both for the ternary system: acetic acid–chloroform–water, and for the component binary systems: acetic acid–chloroform and acetic acid–water. The results are discussed in their bearing on the equilibria existing in these systems.

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