Heats of mixing of Alcohol solutions

1955 ◽  
Vol 8 (3) ◽  
pp. 361
Author(s):  
I. Brown ◽  
W Fock
Keyword(s):  
Carbon Tetrachloride ◽  
Composition Range ◽  
Ethylene Dichloride ◽  
Binary Liquid ◽  
Heats Of Mixing ◽  
Liquid Systems

A calorimeter for the measurement of the heats of mixing of binary liquid systems at temperatures from 20 to 45 �C is described. Heats of mixing have been measured for approximately equimolar mixtures of benzene+carbon tetrachloride at 25 �C, benzene+ethylene dichloride at 25 �C, acetone+chloroform at 25 �C, and ethanol+-carbon tetrachloride at 45 �C. Measurements have been made at intervals over the whole composition range of the systems ethanol+2,2,4-trimethylpentane at 25 �C and ethanol+benzene at 45 �C.

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.

Heats of mixing. II. Acetonitrile and nitromethane systems

1956 ◽  
Vol 9 (2) ◽  
pp. 180 ◽  
Author(s):  
I Brown ◽  
W Fock
Keyword(s):  
Free Energy ◽  
Carbon Tetrachloride ◽  
Composition Range ◽  
Excess Entropy ◽  
Excess Free Energy ◽  
Energy Data ◽  
Entropy Of Mixing ◽  
Heats Of Mixing

The heats of mixing at 45.00 �C have been measured at intervals over the whole composition range for the systems : acetonitrile+carbon tetrachloride, acetonitrile+benzene, acetonitrile +nitromethane, nitromethane + carbon tetrachloride, and nitromethane+benzene. These data, together with the excess free energy data of Brown and Smith (1954, 1955a, 1955b), have been used to calculate the excess entropy of mixing for these systems.

scholarly journals Excess molar volume of the acetonitrile + alcohol systems at 298.15K. Part I: Density measurements for acetonitrile + methanol, + ethanol systems

2002 ◽  
Vol 67 (8-9) ◽  
pp. 581-586 ◽  
Author(s):  
Ivona Grguric ◽  
Aleksandar Tasic ◽  
Bojan Djordjevic ◽  
Mirjana Kijevcanin ◽  
Slobodan Serbanovic
Keyword(s):  
Molar Volume ◽  
Excess Molar Volume ◽  
Atmospheric Pressure ◽  
Composition Range ◽  
Entire Composition Range ◽  
Density Measurements ◽  
Binary Liquid ◽  
Liquid Systems ◽  
Vibrating Tube Densimeter ◽  
Kister Equation

The excess molar volume VE of the binary liquid systems acetonitrile methanol and acetonitrile + ethanol has been evaluated from density measurements at 298.15K and at atmospheric pressure over the entire composition range. A vibrating tube densimeter, type Anton Paar DMA 55, was applied for these measurements. The Redlich?Kister equation was used to fit the experimental VE data.

Surface tensions of binary liquid systems. I. Mixtures of nonelectrolytes

1970 ◽  
Vol 48 (24) ◽  
pp. 3773-3781 ◽  
Author(s):  
V. T. Lam ◽  
G. C. Benson
Keyword(s):  
Surface Tension ◽  
Carbon Tetrachloride ◽  
Binary Mixtures ◽  
Pure Component ◽  
Corresponding States ◽  
The Other ◽  
Surface Tensions ◽  
Binary Liquid ◽  
Liquid Systems

Surface tensions were measured for the ten binary liquid systems: cyclopentane + carbon tetrachloride, cyclopentane + tetrachloroethylene, cyclopentane + benzene, cyclopentane + toluene, cyclohexane + tetrachloroethylene, cyclohexane + benzene, cyclohexane + toluene, cyclohexane + cis-decalin, cyclohexane + trans-decalin, and benzene + o-xylene. The system cyclohexane + benzene was studied at 20 and 30 °C. Measurements for the other nine systems were carried out at 25 °C. The principle of corresponding states was used to correlate the surface tension results with other properties of the pure component liquids and of their binary mixtures.

Mixing Enthalpies of TbBr3-MBr Liquid Mixtures

2001 ◽  
Vol 56 (12) ◽  
pp. 859-864 ◽  
Author(s):  
L. Rycerz ◽  
M. Gaune-Escard
Keyword(s):  
Mole Fraction ◽  
Composition Range ◽  
Liquid Mixtures ◽  
Entire Composition Range ◽  
Mixing Enthalpy ◽  
Rich Region ◽  
Enthalpies Of Mixing ◽  
Binary Liquid ◽  
Liquid Systems ◽  
Mixing Enthalpies

AbstractThe molar enthalpies of mixing, Δmix Hm in the binary liquid systems TbBr3-MBr (M = Li, Na, K, Rb, Cs) have been m easured with a Calvet-type high-tem perature microcalorimeter over the entire composition range with an accuracy of about 6 %. Mixing of the two liquid components was achieved by using the “break-off am poule” technique. All the investigated systems show negative enthalpies of mixing with a minim um value of approxim ately -1.25, - 8 .3 , -17.0, - 2 0 . 0 and -22.5 kJ mol -1, for M = Li, Na, K, Rb and Cs, respectively. The mixing enthalpy in the TbBr3- LiBr system is positive in the TbBr3-rich region. For all the systems, the enthalpy minimum occurs at mole fraction xTbBr3 ≈ 0.3 - 0.4. The molar enthalpies of form ation Δ formHm (3MBr, TbBr3, 1) for M = Li, Na, K, Rb and Cs at 1113 K (arising from the reaction 3M Br(1) +TbBr3(1) = (3MBr, TbBr3) (1)) are found to be -4 .8 , -31.3, -63.3, -70.3 and -8 1 .2 kJ mol-1 , respectively. The leastsquares coefficients A, B, C, D and E in the equation λ (kJ mol-1) = A + B x + C x2 + Dx3 + Ex4, where A is an interaction param eter and x = xTbBr , are also reported.

Binary Liquid Systems of Nonelectrolytes II

2012 ◽  
Author(s):  
I. Cibulka ◽  
J.-C. Fontaine ◽  
K. Sosnkowska-Kehiaian ◽  
H. V. Kehiaian
Keyword(s):  
Binary Liquid ◽  
Liquid Systems

Dispersion of resistivity anomalies in critical binary liquid systems

1978 ◽  
Vol 56 (3) ◽  
pp. 507-510 ◽  
Author(s):  
Anil Kumar ◽  
M.K. Tiwari ◽  
E.S.R. Gopal
Keyword(s):  
Binary Liquid ◽  
Liquid Systems
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