Interfacial properties of mixtures of molecular fluids: comparison between theory and experiment; methyl iodide + carbon tetrachloride and acetonitrile + carbon tetrachloride

1992 ◽  
Vol 96 (21) ◽  
pp. 8488-8497 ◽  
Author(s):  
Paulo I. C. Teixeira ◽  
Benilde S. Almeida ◽  
Margarida M. Telo da Gama ◽  
Jorge A. Rueda ◽  
Ramon G. Rubio
Keyword(s):  
Carbon Tetrachloride ◽  
Methyl Iodide ◽  
Interfacial Properties ◽  
Molecular Fluids ◽  
Theory And Experiment

The statistical thermodynamics of solutions of non-spherical molecules. I. The thermodynamic functions

1955 ◽  
Vol 229 (1177) ◽  
pp. 271-280 ◽  
Keyword(s):  
Carbon Tetrachloride ◽  
Equation Of State ◽  
Thermodynamic Functions ◽  
Statistical Thermodynamics ◽  
Intermolecular Forces ◽  
Pure Component ◽  
Experimental Results ◽  
Thermodynamics Of Solutions ◽  
Theory And Experiment

The perturbation treatment of the orientational forces between non-spherical molecules proposed by Cook & Rowlinson (1953) is extended to mixtures by using the theory of solutions put forward by Longuet-Higgins (1951). The thermodynamic functions and the equation of state of such mixtures are expressed in terms of the intermolecular forces and the properties of one pure component. Expressions are derived for the excess (or non-ideal) thermodynamic functions which are compared with the experimental results on the four solutions, benzene+ cyclohexane , benzene+carbon tetrachloride, benzene + ethylene dychloride, and cyclohexane + carbon tetrachloride. The agreement between theory and experiment is improved by taking account of the orientational forces.

Influence of pressure on the thermodynamic properties of simple molecular fluids: carbon tetrachloride + carbon disulfide system

1988 ◽  
Vol 92 (13) ◽  
pp. 3998-4006 ◽  
Author(s):  
A. Compostizo ◽  
A. Crespo Colin ◽  
M. R. Vigil ◽  
R. G. Rubio ◽  
M. Diaz Pena
Keyword(s):  
Carbon Tetrachloride ◽  
Thermodynamic Properties ◽  
Carbon Disulfide ◽  
Molecular Fluids

ORGANIC DEUTERIUM COMPOUNDS: XV. SYNTHESIS OF SOME DEUTERATED ALKANES

1956 ◽  
Vol 34 (3) ◽  
pp. 354-358 ◽  
Author(s):  
Mary Elaine Leblanc ◽  
A. T. Morse ◽  
L. C. Leitch
Keyword(s):  
Carbon Tetrachloride ◽  
Methyl Iodide ◽  
Zinc Dust ◽  
Deuterium Oxide ◽  
Alkyl Halides ◽  
Ethyl Iodide ◽  
Improved Method

An improved method of preparing deuterated alkanes from the halides has been developed. Dehalogenation of ethyl iodide, 1,1-dibromoethane, and 1,1,1-trichloroethane with zinc dust in deuterium oxide – dioxane solutions, or even with deuterium oxide alone, gave excellent yields of ethane-d1, ethane-1,1-d2, and ethane-1,1,1-d3. Methane-d1, -d2, -d3, and -d4 were prepared similarly from methyl iodide, dibromomethane, chloroform, and carbon tetrachloride respectively. The isotopic purity of the products was over 90 mol.%. The reaction is also applicable to higher alkyl halides.

A Simple Preparation of Bis(η-cyclopentadienyl)hydrido-(halogeno)tungsten(IV) Complexes

1989 ◽  
Vol 42 (4) ◽  
pp. 587 ◽  
Author(s):  
MA Bennett ◽  
HP Schwemlein
Keyword(s):  
Carbon Tetrachloride ◽  
Methyl Iodide ◽  
Simple Preparation

The monohydrido complexes WHX( ή-C5H5)2 (X = CI, Br, I) have been isolated from the reaction of WH2(η-C5H5)2 with, respectively, carbon tetrachloride, bromoform, and methyl iodide.

Surface properties of mixtures of molecular fluids: an experimental and theoretical study of carbon disulfide + dichloromethane and carbon disulfide + carbon tetrachloride

1989 ◽  
Vol 93 (8) ◽  
pp. 3210-3218 ◽  
Author(s):  
Javier Aracil ◽  
Gustavo Luengo ◽  
Benilde S. Almeida ◽  
Margarida M. Telo da Gama ◽  
Ramon G. Rubio ◽  
...  
Keyword(s):  
Carbon Tetrachloride ◽  
Surface Properties ◽  
Carbon Disulfide ◽  
Theoretical Study ◽  
Molecular Fluids

scholarly journals The Effect of Electronic Scavenger Additives on the AC Dielectric Strength of Transformer Mineral Oil

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2607 ◽  
Author(s):  
Usama Khaled ◽  
Abderrahmane Beroual
Keyword(s):  
Carbon Tetrachloride ◽  
Weibull Distribution ◽  
Normal Distribution ◽  
Breakdown Voltage ◽  
Methyl Iodide ◽  
Dielectric Strength ◽  
Mineral Oil ◽  
Optimum Concentration ◽  
Maximum Value ◽  
Two Phases

This paper is devoted to the influence of two types of electronic scavenger additives/compounds, namely, carbon tetrachloride (CCl4) and methyl iodide, which is also called iodomethane (CH3I), on the dielectric strength of transformer mineral oil. The tests are achieved in a sphere-sphere electrodes arrangement under AC voltage according to the IEC 60156 standard. The investigated additive concentrations range from 0 to 600 ppm. The verification of the conformity of the experimental results with normal and Weibull probabilistic distributions as well as the estimation of the breakdown voltage with risk probabilities of 1%, 10%, and 50% are also performed. It is shown that there is an optimum concentration of each type of electronic scavenger compound at which the dielectric strength of the mineral oil is significantly improved (i.e., it reaches a maximum value). This improvement is of 98% with 500 ppm of CH3I and 93% with 200 ppm of CCl4. It is also shown that the breakdown voltage values of all of the investigated samples with and without additives conform to a Weibull distribution but not to a normal distribution. The obtained results are discussed with regard to the possible mechanisms that may be responsible, particularly the two phases of inception and propagation of the streamers.

The adsorption of vapours on mercury. IV. Surface potentials and chemisorption

1950 ◽  
Vol 201 (1066) ◽  
pp. 377-391 ◽  
Keyword(s):  
Activation Energy ◽  
Surface Tension ◽  
Carbon Tetrachloride ◽  
Methyl Iodide ◽  
Surface Potential ◽  
Square Root ◽  
Mercury Lamp ◽  
Mercury Surface ◽  
Rate Of Reaction ◽  
Activated Complex

An apparatus has been constructed to measure the surface potential of adsorbed vapours on mercury. There was shown to be a change in potential of 0.055V at the phase change associated with the alteration in the orientation of toluene molecules adsorbed on the surface of the mercury. Carbon tetrachloride, hexachlorethane and chloroform vapours reacted with mercury, and the rate of the reaction was determined by the accompanying change in surface potential which was over 1V in the case of carbon tetrachloride. The kinetics indicated that the substances were dimerizing under the action of the mercury surface with negligible activation energy. The rate of reaction with carbon tetrachloride was in agreement with the calculated rate, assuming that the activated complex consisted of two physically adsorbed molecules loosely held together and able to move over the surface. Methyl iodide vapour was found to react with mercury only when illuminated with light from a mercury lamp. There was little change of surface potential associated with this reaction, but the kinetics were determined from the irreversible changes in the surface tension of the mercury. It was found that the rate of reaction depended on the square root of the light intensity, which suggested that the methyl iodide was being dissociated into radicals, which in turn reacted with the mercury.

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