what is cfc chemistry
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Where Is the Ozone Layer Located? CFCs. Chlorofluorocarbon (CFC) is an organic compound that contains carbon, chlorine, and fluorine, produced as a volatile derivative of methane and ethane. A common subclass is the hydrochlorofluorocarbons (HCFCs), which contain hydrogen, as well.
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Chlorofluorocarbon Ultraviolet radiation in the stratosphere causes the CFC molecules to dissociate, producing chlorine atoms and radicals (i.e., chlorodifluoromethyl radical; free radicals are species that contain one or more unpaired electrons).
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Acetyl chloride Acetyl chloride, CH 3 COCl is an acid chloride derived from acetic acid. It belongs to the class of organic compounds called acyl halides.cetyl is an acyl group having the formula-C(=O)-CH 3. For further information on the types of chemical reactions compounds such as acetyl chloride can undergo, see acyl halide. Two major classes of acetylations include esterification and the Friedel-Crafts reaction.
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Carbon disulfide For the cycle super-highway in London, see List of cycle routes in London. Carbon disulfide is a colorless volatile liquid with the formula CS2. The compound is used frequently as a building block in organic chemistry as well as an industrial and chemical non-polar solvent. It has an ether-like odor, but commercial samples are typically contaminated with foul-smelling impurities.
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Chlorofluorocarbons (CFCs): Refrigerants that Cause Ozone Layer Depletion slide 1 of 3. What are CFCs? Chlorofluorocarbons (CFCs) have been used extensively in last five or six decades as refrigerants in the vapor compression cycle to produce refrigerating and air-conditioning effects. In recent years it has been found that CFCs are most destructive to the environment.
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What are chlorofluorocarbons - CFCs? CFC's-ChloroFluoroCarbons-are a class of volatile organic compounds that have been used as refrigerants, aerosol propellants, foam blowing agents, and as solvents in the e … lectronic industry ChloroFluroCarbon a fluorocarbon with chlorine; Commercially, the most important CFCs were derivatives of methane and ethane.
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Carbon tetrachloride CARBON TETRACHLORIDE is a solvent for oils, fats, lacquers, varnishes, rubber waxes, and resins, and a starting material in the manufacturing of organic compounds. Poisoning by inhalation, ingestion or skin absorption is possible and may be fatal. (Merck Index, 11th ed)
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Tetrachloroethylene Tetrachloroethylene, also known under the systematic name tetrachloroethene, or perchloroethylene (perc or PERC), and many other names, is a chlorocarbon with the formula Cl2C=CCl2. It has a sweet odor detectable by most people at a concentration of 1 part per million (1 ppm).
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- TIMELINE: DuPont, CFCs and Alternatives 1928 Midgley discovers chlorofluorocarbons (CFCs) as safer alternatives to toxic and/or flammable refrigerants then in use. 1931 Commercial scale production of CFCs in DuPont/GM joint venture.
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Where Is the Ozone Layer Located? A chlorofluorocarbon (CFC) is an organic compound that contains only carbon, chlorine, and fluorine, produced as a volatile derivative of methane, ethane, and propane. They are also commonly known by the DuPont brand name Freon. The most common representative is dichlorodifluoromethane (R-12 or Freon-12).
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chlorofluorocarbon chlorofluorocarbon. n. 1. (Chemistry) chem any of various gaseous compounds of carbon, hydrogen, chlorine, and fluorine, used as refrigerants, aerosol propellants, solvents, and in foam: some cause a breakdown of ozone in the earth's atmosphere.Abbreviation: CFC.CFC, hydrochlorofluorocarbon-a fluorocarbon that is replacing chlorofluorocarbon as a refrigerant and propellant in aerosol cans; considered to be somewhat less destructive to the atmosphere. pollutant-waste matter that contaminates the water or air or soil.
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Where Is the Ozone Layer Located? Freons are colorless, odorless, nonflammable, noncorrosive gases or liquids. Chlorofluorocarbons (CFCs) are highly stable compounds that were used as propellents in spray cans and in refrigeration units. They are several organic compounds composed of carbon, fluorine, chlorine, and hydrogen.FCs Chlorofluorocarbon (CFC) is an organic compound that contains carbon, chlorine, and fluorine, produced as a volatile derivative of methane and ethane. A common subclass is the hydrochlorofluorocarbons (HCFCs), which contain hydrogen, as well. Freon is DuPont's brand name for CFCs, HCFCs and related compounds.
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chlorofluorocarbon Definition of chlorofluorocarbon. : any of several simple gaseous compounds that contain carbon, chlorine, fluorine, and sometimes hydrogen, that are used as refrigerants, cleaning solvents, and aerosol propellants and in the manufacture of plastic foams, and that are believed to be a major cause of stratospheric ozone depletion —abbreviation CFC.
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- CFCs are low in. toxicity, nonflammable, noncorrosive, and compatible with. other materials. In addition, they offer the thermodynamic. and physical properties that make them ideal for a variety. of uses. CFCs are used as refrigerants; as blowing agents in. the manufacture of insulation, packaging, and cushioning. foams; as cleaning agents for metal and electronic. components; and in many other applications. However, the stability of CFCs, coupled with their chlorine.
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What Is Carbon Tetrachloride? Carbon tetrachloride is a colorless organic compound with the chemical formula CCl4. The International Union of Pure and Applied Chemistry (IUPAC) name for this chemical is tetrachloromethane. Carbon tetrachloride is often used as an organic solvent, a fuel additive, a catalyst, a refrigerant or a metal de-greaser. Prolonged exposure to this chemical can be harmful to the liver, kidneys and central nervous system. At room temperature, carbon tetrachloride is a colorless liquid.
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Chlorofluorocarbons (CFCs) Chlorofluorocarbons (CFCs) are a group of compounds which contain the elements chlorine, fluorine and carbon. At room temperatures, they are usually colourless gases or liquids which evaporate easily. They are generally unreactive and stable, non-toxic and non-flammable.
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- Chlorofluorocarbons or CFCs (also known as Freon) are non-toxic, non-flammable and non-carcinogenic. They contain fluorine atoms, carbon atoms and chlorine atoms.
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Ilokano Translation More: English to English translation of Zur. Copyright: © This article uses material from Wikipedia® and is licensed under the GNU Free Documentation License and under the Creative Commons Attribution-ShareAlike License Dictionary source: Wikipedia English-The Free Encyclopedia.
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- R409A is a blend of HCFC refrigerants introduced to retrofit R12 in air conditioning and refrigeration applications.CFC’s are commonly accepted as having an overall detrimental effect on the environment through both their ozone depletion potential and global warming potential and consequently are being phased out completely.
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- Chlorofluorocarbons (CFCs) are highly stable compounds that were used as propellents in spray cans and in refrigeration units. They are several organic compounds composed of carbon, fluorine, chlorine, and hydrogen.
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- Scientists have discovered that the depletion of this majestic ozone layer is caused by chlorofluorocarbons or CFC for short, and they are compounds consisting of chlorine, carbon and fluorine. They were widely used as propellants for aerosols and as coolants in refrigerators and air-conditioners.
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- When UV radiation hits a CFC molecule it causes one chlorine atom to break away. The chlorine atom then hits an ozone molecule consisting of three oxygen atoms and takes one of the oxygen molecules, destroying the ozone molecule and turning it into oxygen.hilst chlorine is a natural threat to ozone, CFCs which contain chlorine are a man-made problem. Although CFC molecules are several times heavier than air, winds mix the atmosphere to altitudes far above the top of the stratosphere much faster than molecules can settle according to their weight.
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What is a 'Controlled Foreign Corporation (CFC)' DEFINITION of 'Controlled Foreign Corporation-CFC'. A corporate entity that is registered and conducts business in a different jurisdiction or country than the residency of the controlling owners.Control of the foreign company is defined, in the U.S., according to the percentage of shares owned by U.S. citizens. corporate entity that is registered and conducts business in a different jurisdiction or country than the residency of the controlling owners. Control of the foreign company is defined, in the U.S., according to the percentage of shares owned by U.S. citizens.
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Tetrachloroethylene Tetrachloroethylene, also known under the systematic name tetrachloroethene, or perchloroethylene ( perc  or  PERC ), and many other names, is a chlorocarbon with the formula Cl 2 C=CCl 2.It is a colorless liquid widely used for dry cleaning of fabrics, hence it is sometimes called dry-cleaning fluid..It has a sweet odor detectable by most people at a concentration of 1 part per million (1 ppm). Worldwide production was about one million metric tons in 1985.etrachloroethylene is an excellent solvent for organic materials. Otherwise it is volatile, highly stable, and nonflammable. For these reasons, it is widely used in dry cleaning. It is also used to degrease metal parts in the automotive and other metalworking industries, usually as a mixture with other chlorocarbons.
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- “Volatile organic compound” or VOC is the name given to a substance that contains carbon and that evaporates (becomes a vapor) or “off-gases” at room temperature. Some examples of VOCs include benzene, methylene chloride, hexane, toluene, trichloroethane, styrene, heptane, and perchloroethylene.Volatile organic compound” or VOC is the name given to a substance that contains carbon and that evaporates (becomes a vapor) or “off-gases” at room temperature. Some examples of VOCs include benzene, methylene chloride, hexane, toluene, trichloroethane, styrene, heptane, and perchloroethylene.
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What is a 'Controlled Foreign Corporation (CFC)' DEFINITION of 'Controlled Foreign Corporation-CFC'. A corporate entity that is registered and conducts business in a different jurisdiction or country than the residency of the controlling owners. Control of the foreign company is defined, in the U.S., according to the percentage of shares owned by U.S. citizens.