Carbon tetrachloride vapor pressure

Carbon tetrachloride and gasoline are mutually soluble in each. other in all proportions. The vapor pressure of gasoline is lowered by the admixture, and furthermore the vapor that escapes is mixed with non-combustible carbon tetrachloride vapor it is thus understandable that the combustibility of gasoline is lessened by large admixture with this substance. 

Draw a vacuum in the chamber and then admit carbon tetrachloride vapor until a desired pressure is reached. 

Carbon tetrachloride [56-23-5] (tetrachloromethane), CCl, at ordinary temperature and pressure is a heavy, colorless Hquid with a characteristic nonirritant odor it is nonflammable. Carbon tetrachloride contains 92 wt % chlorine. When in contact with a flame or very hot surface, the vapor decomposes to give toxic products, such as phosgene. It is the most toxic of the chloromethanes and the most unstable upon thermal oxidation. The commercial product frequendy contains added stabilizers. Carbon tetrachloride is miscible with many common organic Hquids and is a powerhil solvent for asphalt, benzyl resin (polymerized benzyl chloride), bitumens, chlorinated mbber, ethylceUulose, fats, gums, rosin, and waxes. 

You can rule out choice B, hydrogen peroxide, and choice C, water, because the very strong hydrogen bonds between their molecules lower the vapor pressure (the ease at which the liquid evaporates). Although answer A, carbon tetrachloride, the only nonpolar molecule in the list, has only dispersion forces present between molecules, choice D, dichloromethane, has the lowest molecular weight and consequently the lowest amount of dispersion forces. 

What is the vapor pressure of a solution made by mixing 80.0 g of chloroform, CHCl3, in 800.0 g of carbon tetrachloride, CCl4 The vapor pressure of chloroform is 197 torr, and the vapor pressure of carbon tetrachloride is 114 torr (all vapor pressures are determined at 25°C). 

A solution of pentane, C5Hi2, in carbon tetrachloride, CCI4, is nearly ideal. The vapor pressure of pentane is 450 mm Hg at 20°C, and the vapor pressure of carbon tetrachloride is 87 mm Hg at this temperature. What is the mole fraction of carbon tetrachloride in the vapor over an equimolar solution of these two liquids ... 

Passino-Reader, D.R., Hickey, J.P., and Ogilvie, L.M. Toxicity to Daphnia pulexmA QSAR predictions for polycyclic hydrocarbons representative of Great Lakes contaminants. Bull. Environ. Contam. Toxicol, 59(5) 834-840, 1997. Pathare, S., Bhethanabotla, V.R., and Campbell, S.W. Total vapor-pressure measurements for 2-ethoxyethanol with carbon tetrachloride, chloroform, and dichloromethane at 303.15 K, J. Chem. Eng. Data, 49(3) 510-513, 2004. 

Colorless gas (or fuming hquid) density 5.14 g/L hquefies at 12.6°C solidifies at -107°C vapor pressure 470 torr at 0°C critical temperature 182°C critical pressure 38.2 atm critical molar volume 239 cm /mol reacts with water and ethanol soluble in carbon tetrachloride. 

Black crystaUine solid exists in two modifications stable black needles known as alpha form that produces ruby-red color in transmitted light, and a labile, metastable beta modification consisting of black platelets which appear brownish-red in transmitted light density of alpha form 3.86 g/cm at 0°C density of beta form 3.66 g/cm at 0°C alpha form melts at 27.3°C, vapor pressure being 28 torr at 25°C beta form melts at 13.9°C hquid iodine monochloride has bromine-hke reddish-brown color hquid density 3.10 g/mL at 29°C viscosity 1.21 centipoise at 35°C decomposes around 100°C supercools below its melting point polar solvent as a hquid it dissolves iodine, ammonium chloride and alkali metal chlorides hquid ICl also miscible with carbon tetrachloride, acetic acid and bromine the solid crystals dissolve in ethanol, ether, acetic acid and carbon disulfide solid ICl also dissolves in cone. HCl but decomposes in water or dilute HCl. 

YeUowish-white tetragonal crystals pungent odor fumes in air dehques-cent density 2.1 g/cm decomposes on heating melts at 166.8°C under the pressure of its own vapor(triple point) sublimes at 160°C critical temperature 373°C hydrolyzes in water soluble in carbon disulfide and carbon tetrachloride. 

Trisilane Colorless liquid density 0.743 g/mL at 0°C freezes at -117.4°C boils at 52.9°C vapor density 4.15 g/L at atmospheric pressure decomposes in water decomposes in carbon tetrachloride. 

Water freezes to ice at 0°C expands by about 10% on freezing boils at 100°C vapor pressure at 0°, 20°, 50°, and 100°C are 4.6, 17.5, 92.5, and 760 torr, respectively dielectric constant 80.2 at 20°C and 76.6 at 30°C dipole moment in benzene at 25°C 1.76 critical temperature 373.99°C critical pressure 217.8 atm critical density 0.322 g/cm viscosity 0.01002 poise at 20°C surface tension 73 dynes/cm at 20°C dissolves ionic substances miscible with mineral acids, alkalies low molecular weight alcohols, aldehydes and ketones forms an azeotrope with several solvents immiscible with nonpolar solvents such as carbon tetrachloride, hexane, chloroform, benzene, toluene, and carbon disulfide. 

For this reason, additional studies on carbon tetrachloride flux rates into and out of surface water, as well as refined quantitative estimates of aquatic fate processes would be valuable. The chemical is expected to evaporate rapidly from soil due to its high vapor pressure and may migrate into groundwater due to its low soil adsorption coefficient. No data are available on biodegradation in soil. Additional studies to determine degradation rates and the extent to which adsorption has occurred would be useful. These data are also useful in evaluating the impact of carbon tetrachloride leaching from hazardous waste sites. 

Ivency or emulsification of beeswax, aqueous solubility, and vapor pressure are completely correlated with nematocidal efficacy as determined in laboratory tests. The correlation is not complete when field efficacy is considered. Thus carbon tetrachloride, benzene, and toluene should be good nematocides, but have not proved satisfactory in field tests. Likewise carbon disulfide, while a sound nematocide under optimum conditions, requires, for satisfactory nematode control, a greater quantity than would be expected on the basis of its solubilities and solvency. The answer may lie in the lack of polarity of these molecules. 

CARBON TETRACHLORIDE. [CAS 56-23-5], CCL, formula weight 82.82. heavy, colorless, nonflammable, noncombustible liquid, nip - 23°C. bp 76.75 C. sp gr 1.588 <2S C/25lC). vapor density 5.32 (air = 1.00). critical temperature 283.2cC. critical pressure 661 atmospheres, solubility 0.08 g in 100 g H 0. odor threshold 80 ppm. Dry carbon tetrachloride is noncorrosive to common metals except aluminum. When wet. CCL hydrolyzes and is corrosive to iron, copper, nickel, and alloys containing those elements About 9091 of all CCL manufactured goes into the production of chlorofluorocarbons ... 

CC14 (liq.). Data on the heat of vaporization of carbon tetrachloride were reported by Marshall,1 Mathews,2 Mills,1 Tyrer,3 and Regnault.8 8 Vapor pressure data were reported by Young,2 Burrell and Robertson,2 Cardoso and Braume,2 Guye and Drouguinine,1 Keyes, Taylor, and Smith,1 Olszewski,2 4 and Pierre.1... 

With a highly volatile diluent, such as carbon tetrachloride, the solvent loss can be quite high (Leonard, 1988). Even with a diluent that is considered nonvolatile, but which does have a small vapor pressure, the diluent loss from the solvent can be important (Leonard et al., 2003). In both cases, the solvent was returned to its original state by replacing the lost diluent. Measurements of diluent loss from solvent in a 33-stage 2-cm contactor ranged from 0.05 to 0.48 mL/min when the diluent was Isopar L (Leonard et al., 2002a). The lower loss rate is considered to be more typical for this particular system. 

Hildenbrand, D.L., McDonald, R.A. (1959) The heat of vaporization and vapor pressure of carbon tetrachloride The entropy from calorimetric data. J. Phys. Chem. 63, 1521-22. 

Pathare, S., Bhethanabotla, V.R., Campbell, S.W. (2004) Total vapor pressure measurements for 2-ethoxyethanol with carbon tetrachloride, chloroform, and dichloromethane at 303.15 K. J. Chem. Eng. Data 49, 510-513. 

Figure 3.10 shows the vapor pressure/composition curve at a given temperature for an ideal solution. The three dotted straight lines represent the partial pressures of each constituent volatile liquid and the total vapor pressure. This linear relationship is derived from the mixture of two similar liquids (e.g., propane and isobutane). However, a dissimilar binary mixture will deviate from ideal behavior because the vaporization of the molecules A from the mixture is highly dependent on the interaction between the molecules A with the molecules B. If the attraction between the molecules A and B is much less than the attraction among the molecules A with each other, the A molecules will readily escape from the mixture of A and B. This results in a higher partial vapor pressure of A than expected from Raoult s law, and such a system is known to exhibit positive deviation from ideal behavior, as shown in Figure 3.10. When one constituent (i.e., A) of a binary mixture shows positive deviation from the ideal law, the other constituent must exhibit the same behavior and the whole system exhibits positive deviation from Raoult s law. If the two components of a binary mixture are extremely different [i.e., A is a polar compound (ethanol) and B is a nonpolar compound (n-hexane)], the positive deviations from ideal behavior are great. On the other hand, if the two liquids are both nonpolar (carbon tetrachloride/n-hexane), a smaller positive deviation is expected.

Infrared spectra were recorded in carbon tetrachloride in 5 mm KBr liquid cells or as a thin film between NaCl plates on a Beckman IR-20 infrared spectrometer. The number-average molecular weights were determined by vapor pressure osmometry in methylene chloride solutions (3-8 g/1) (23). 

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