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Trifluoroethane
Trifluoroethane may refer to either of two isomeric fluorocarbons which differ by the location of attachment of the fluorine atoms: *1,1,1-Trifluoroethane 1,1,1-Trifluoroethane, or R-143a or simply trifluoroethane, is a hydrofluorocarbon (HFC) compound that is a colorless gas. It should not be confused with the much more commonly used HFC gas R-134a, nor confused with the isomeric compound 1,1,2-tr ... (R-143a) * 1,1,2-Trifluoroethane (R-143b) Both are used as refrigerant and propellant gases. {{Chemistry index Fluoroalkanes Refrigerants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1,1,2-Trifluoroethane
1,1,2-Trifluoroethane or R-143, is a hydrofluorocarbon with formula . It is a colourless gas at room temperature. It is an asymmetrical isomer of 1,1,1-trifluoroethane. 1,1,2-Trifluoroethane has a global warming potential of 397 for 100 years.G. Myhre, D. Shindell et al.: Climate Change 2013: The Physical Science Basis. Working Group I contribution to the IPCC Fifth Assessment Report. Hrsg.: Intergovernmental Panel on Climate Change. 2013, Chapter 8: Anthropogenic and Natural Radiative Forcing, 24–39; Table 8.SM.16 1,1,2-Trifluoroethane can be obtained by the hydrogenation of 1,2-dichlorodifluoroethylene or chlorotrifluoroethylene. See also * 1,2-Dichloro-1,1,2-trifluoroethane * 1,1,2-Trichloro-1,2,2-trifluoroethane * 1,1,2-Trichloroethane 1,1,2-Trichloroethane, or 1,1,2-TCA, is an organochloride solvent with the molecular formula CHCl. It is a colourless, sweet-smelling liquid that does not dissolve in water, but is soluble in most organic solvents. It is an isomer of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1,1,1-Trifluoroethane
1,1,1-Trifluoroethane, or R-143a or simply trifluoroethane, is a hydrofluorocarbon (HFC) compound that is a colorless gas. It should not be confused with the much more commonly used HFC gas R-134a, nor confused with the isomeric compound 1,1,2-trifluoroethane. 1,1,1-Trifluoroethane has a critical temperature of 73 °C. Applications Trifluoroethane is used as a refrigerant either by itself or more commonly as a component of blended mixtures. It is also used as a propellant in canned air products used to clean electronic equipment. Environmental effects Unlike CFCs used as refrigerants, trifluoroethane has no chlorine atoms and therefore is not ozone-depleting. Its high chemical stability and infra-red absorbency make it a potent greenhouse gas with a lifetime of about 50 years and a global warming potential of 4300, which are at the high end compared to many other commonly used HFC refrigerants. Its abundance in the atmosphere more than doubled from about 10 parts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isomer
In chemistry, isomers are molecules or polyatomic ions with identical molecular formulae – that is, same number of atoms of each element – but distinct arrangements of atoms in space. Isomerism is existence or possibility of isomers. Isomers do not necessarily share similar chemical or physical properties. Two main forms of isomerism are structural or constitutional isomerism, in which ''bonds'' between the atoms differ; and stereoisomerism or spatial isomerism, in which the bonds are the same but the ''relative positions'' of the atoms differ. Isomeric relationships form a hierarchy. Two chemicals might be the same constitutional isomer, but upon deeper analysis be stereoisomers of each other. Two molecules that are the same stereoisomer as each other might be in different conformational forms or be different isotopologues. The depth of analysis depends on the field of study or the chemical and physical properties of interest. The English word "isomer" () is a back-for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fluorocarbon
Fluorocarbons are chemical compounds with carbon-fluorine bonds. Compounds that contain many C-F bonds often has distinctive properties, e.g., enhanced stability, volatility, and hydrophobicity. Fluorocarbons and their derivatives are commercial polymers, refrigerants, drugs, and anesthetics. Nomenclature Perfluorocarbons or PFCs, are organofluorine compounds with the formula CxFy, i.e., they contain only carbon and fluorine. The terminology is not strictly followed and many fluorine-containing organic compounds are called fluorocarbons. Compounds with the prefix perfluoro- are hydrocarbons, including those with heteroatoms, wherein all C-H bonds have been replaced by C-F bonds. Fluorocarbons includes perfluoroalkanes, fluoroalkenes, fluoroalkynes, and perfluoroaromatic compounds. Perfluoroalkanes Chemical properties Perfluoroalkanes are very stable because of the strength of the carbon–fluorine bond, one of the strongest in organic chemistry. Its strength is a resu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
