76-16-4 Hexafluoroethane

Temperature Pressure Density Volume Int. energy Enthalpy Entropy C CT Sound speed Joule-Thomson 

The values in these tables were generated from the NIST REFPROP software (Lemmon, E. W., McLinden, M. O., and Huber, M. L., NIST Standard Reference Database 23 Reference Fluid Thermodynamic and Transport Properties—REFPROP, National Institute of Standards and Technology, Standard Reference Data Program, Gaithersburg, Md., 2002, Version 7.1). The primary source for the thermodynamic properties is Lemmon, E. W., and Span, R., Short Fundamental Equations of State for 20 Industrial Fluids, / Chem. Eng. Data 51(3) 785-850, 2006. Validated equations for the viscosity and thermal conductivity are not currently available for this fluid. 

The uncertainties in the equation are 0.5% in density for liquid and vapor states and 1% in density or pressure for supercritical states. For vapor pressure, the uncertainty is 0.3%, that for vapor-phase speed of sounds is 0.2%, and the uncertainty for heat capacities is 5%. 

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Uses. The chemical inertness, thermal stability, low toxicity, and nonflammability of PFCs coupled with their unusual physical properties suggest many useflil applications. However, the high cost of raw materials and manufacture has limited commercial production to a few, small-volume products. Carbon tetrafluoride and hexafluoroethane are used for plasma, ion-beam, or sputter etching of semiconductor devices (17) (see loN implantation). Hexafluoroethane and octafluoropropane have some applications as dielectric gases, and perfluorocyclobutane is used in minor amounts as a dielectric fluid. Perfluoro-1,3-dimethyl cyclohexane is used as an inert, immersion coolant for electronic equipment, and perfluoro-2-methyldecatin is used for... 

There have been several reports of the formation of tertiary bismuthines by the action of free radicals on metallic bismuth. One method of generating the radicals iavolves cleavage of ethane or hexafluoroethane ia a radiofrequeacy glow discharge apparatus the radicals thus formed are allowed to oxidize the metal at — 196°C (53). Trimethylbismuthiae and tris(trifluoromethyl)bismuthine [5863-80-9], C BiF, have been obtained by this procedure. 

HERBAZIN 500 BR , siniazine, 74 HERBI D-480 , 2,4-D, 74 HERBIMIX SC , atraziiie + semazine, 74 HERBIPAK 500 BR , ametryn, 74 HERBITRIN 500 BR , atraziiie, 74 HERBOXONE , 2,4-D, 74 HERBURON 500 BR , diui-on, 74 Hercules Eic., 232 Herdillia Chemicals Ltd., 172 Heterene Iiic., 232 Hexachlorobenzene, 74 Hexachlorobutadiene, 74 Hexachlorocyclohexanes, 74 Hexachlorocyclopentadiene, 74 Hexachloroethane, 75 Hexachloronaphthalene, 75 Hexachlorophene, 75 Hexafluoroacetone, 75 Hexafluoroethane, 75 Hexaniethylenedianiine, 75 Hexaniethylene diisocyanate, 75 Hexaniethylphosphoric trianiide, 75 n-Hexane, 75 Hexanol, 75 Hexazinone, 75 1-Hexene, 75... 

Thermal decomposition is a major route to smaller perfluonnated molecules Tetrafluoroethylene pyrolyzed at 1100-1300 °C with carbon dioxide gives a mixture of tetrafluoromethane (19 9%), hexafluoroethane (61 3%), and carbonyl fluoride (18 6%) [87]... 

Pentafluoroethane A candidate substi- AZ-20 is an A specialty low- A specialty low- An azeotropic mix- Hexafluoroethane... 

Tetrafluoromethane, hexafluoroethane, tetrafluoroethylene. difluoropropane, hexafluorocyclopropane, and n-hexafluoro-propylene... 

Chemical Reactions. Its thermal decompn in toluene gives N and hexafluoroethane plus small amts of tetrafluoromethane and tetrafluoro-ethylene (Ref 8). Photolysis of the gas gives... 

N, hexafluoroethane, and higher boiling prods higher press favors the formation of the high boiling prods (Ref 5)... 

Flammability. The flammability limits of mixts ofN trifluoride with gaseous fuels and the effect of N as a diluent are given in graphic form in Ref 18. Fuels examined are H, butane, and hexafluoroethane. The authors also report that... 

Low-temperature glow-discharges were utilized to cause bond rupture in hexafluoroethane (11). In these experiments, the power to support the discharge was supplied by a radio-frequency discharge that delivered 25 W of power, at a frequency of 8.6 MHz, to the copper coil surrounding the Pyrex reactor (see Fig. 2). The load coil was indue-... 

The reactions of mercuric iodide, mercuric bromide, and mercuric chloride with the excited species produced in the hexafluoroethane plasma were examined first, as the expected products were known to be stable and had been well characterized 13). Thus, these reactions constituted a "calibration of the system. Bis(trifluoromethyl)mercury was obtained from the reaction of all of the mercuric halides, but the highest yield (95%, based on the amount of metal halide consumed) was obtained with mercuric iodide. The mole ratios of bis(trifluoro-methyDmercury to (trifluoromethyl)mercuric halides formed by the respective halides is presented in Table I, along with the weight in grams of the trifluoromethyl mercurials recovered from a typical, five-hour run. 

TETRACHLORODIFLUOROETHAN TRICHLOROACETYL CHLORIDE HEXACHLOROETHANE TETRAFLUOROETHYLENE HEXAFLUOROETHANE... 

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