Heats of mixing of carbon tetrachloride with diethyl ether, dimethyl sulphide, and pyridine

1968 ◽  
Vol 21 (2) ◽  
pp. 379 ◽  
Author(s):  
DF Gray ◽  
ID Watson ◽  
AG Williamson

The heats of mixing of carbon tetrachloride with diethyl ether, dimethyl sulphide, and pyridine have been measured at 25�. The negative values of HE are interpreted as an indication of strong specific interactions between the donor atoms O, S, N, and the CCl4.

1956 ◽  
Vol 9 (2) ◽  
pp. 180 ◽  
Author(s):  
I Brown ◽  
W Fock

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.


1957 ◽  
Vol 10 (4) ◽  
pp. 417 ◽  
Author(s):  
I Brown ◽  
W Fock

The heats of mixing at 45.00 �C have been measured at intervals over the whole concentration range for the following systems : acetone+benzene, acetone+carbon tetrachloride, aoetone+acetonitrile, acetone+nitromethane, n-propanol+benzene, and n-butanol+benzene. The heats of mixing are discussed in the light of the authors' earlier results for similar systems.


1948 ◽  
Vol 26b (1) ◽  
pp. 20-37 ◽  
Author(s):  
R. L. McIntosh ◽  
O. Maass ◽  
N. G. M. Tuck

The apparent density of the adsorbate and the adsorption isotherm have been measured in the systems carbon tetrachloride – charcoal and diethyl ether – charcoal. In both, the apparent density of the adsorbate is lower than the normal liquid density. These abnormally low values cannot be explained on the basis of the coexistence of 'vapor' and 'liquid' adsorbed phases. The results are consistent with the concept of the adsorbatc's blocking-off a portion of the internal voids of the charcoal. The Langmuir equation represents the isotherm only when the quantity adsorbed exceeds two-thirds of the saturation value. The Harkins–Jura equation is valid at low relative pressures in the carbon tetrachloride – charcoal system, but not in the diethyl ether – charcoal system. Neon is adsorbed appreciably on charcoal at 25 °C. and therefore cannot be employed to examine the effect that the gas being used for the measurements has on the apparent density of the adsorbate. Until more accurate data are available for the adsorption of helium on charcoal, both in the absence and presence of other adsorbates, the density of charcoal and the density of the adsorbate measured by helium displacement remain suspect. In view of the uncertainties, the utility of apparent density values of adsorbates in checking the concepts of the various theories of physical adsorption is limited.


1984 ◽  
Vol 29 (4) ◽  
pp. 431-435 ◽  
Author(s):  
Miguel A. Villamanan ◽  
Ahmed J. Allawi ◽  
Hendrick C. Van Ness

1963 ◽  
Vol 41 (2) ◽  
pp. 278-286 ◽  
Author(s):  
B. Dacre ◽  
G. C. Benson

Values of heats of mixing are reported for methanol, n-butanol, and n-octanol with carbon tetrachloride at 25 °C. The experimental results are combined with data from other sources and an analysis of the excess thermodynamic functions for carbon tetrachloride solutions of methanol, ethanol, n-propanol, n-butanol, and n-octanol in terms of Barker's theory of solutions is described. The behavior of these systems can be reproduced fairly well by the Barker model.


1975 ◽  
Vol 72 ◽  
pp. 425-430 ◽  
Author(s):  
Dolores Guillén ◽  
Santos Otín ◽  
Mariano Gracia ◽  
Celso Gutiérrez Losa

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