vinyl chloride

a colorless, easily liquefied, flammable, slightly water-soluble gas, C2H3Cl, having a pleasant, etherlike odor: used in the manufacture of plastics, as a refrigerant, and in the synthesis of polyvinyl chloride and other organic compounds. Also called chloroethene, chloroethylene.

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or chloroethylene

Colourless, flammable, toxic gas (H2C=CHCl), belonging to the family of organic compounds of halogens.

It is produced in very large quantities and used principally to make PVC, as well as in other syntheses and in adhesives. Prolonged exposure to vinyl chloride is linked to several kinds of cancer.

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also called  chloroethylene 

      a colourless, flammable, toxic gas belonging to the family of organohalogen compounds (organohalogen compound) and used principally in making polyvinyl chloride, or PVC, a widely used plastic with numerous applications.

      The major industrial preparation of vinyl chloride begins with ethylene and has two variants. In one, ethylene is converted to 1,2-dichloroethane ( ethylene chloride) by reaction with chlorine. Heating 1,2-dichloroethane in the presence of a charcoal catalyst gives vinyl chloride.

      In the other process (called oxychlorination), ethylene, hydrogen chloride, and oxygen (or air) are heated in the presence of a copper catalyst to give vinyl chloride and water.

      Typically, a vinyl chloride plant is designed to integrate the two processes so that the hydrogen chloride produced by heating 1,2-dichloroethane is used as a reactant in the oxychlorination method.

      Processes based on acetylene were developed in the 1930s and are more direct, but because acetylene is much more expensive than ethylene, these processes are used far less than ethylene-based ones.

      Vinyl chloride can cause liver damage, and it is classified as a known human carcinogen.

Francis A. Carey
 

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Universalium. 2010.

Look at other dictionaries:

  • Vinyl chloride — IUPAC name …   Wikipedia

  • vinyl chloride — n. a colorless gas, CH2:CHCl, made by reacting acetylene with hydrogen chloride or by cracking ethylene dichloride: it is used to make polyvinyl chloride, etc …   English World dictionary

  • Vinyl chloride — A substance used in manufacturing plastics that is known to be toxic and carcinogenic (cancer causing). Dangerous exposure to vinyl chloride occurs mainly in the workplace. Breathing high levels of vinyl chloride for short periods of time can… …   Medical dictionary

  • vinyl chloride — vinilchloridas statusas T sritis chemija formulė CH₂=CHCl atitikmenys: angl. vinyl chloride rus. винилхлорид ryšiai: sinonimas – chloretenas …   Chemijos terminų aiškinamasis žodynas

  • vinyl chloride — A substance used to make plastics. Exposure to vinyl chloride may increase the risk of developing liver, brain, and lung cancers; lymphoma; and leukemia …   English dictionary of cancer terms

  • vinyl chloride — noun : a flammable gaseous compound CH2 . CHCl with an ethereal odor prepared by catalytic addition of hydrogen chloride to acetylene or by pyrolysis of ethylene dichloride and used chiefly for making vinyl resins : chloro ethylene see polyvinyl… …   Useful english dictionary

  • vinyl chloride — noun A colourless gas, CH=CHCl, used in the manufacture of the plastic polyvinyl chloride …   Wiktionary

  • vinyl chloride — vi′nyl chlo′ride n. chem. a colorless gas, C2H3Cl, used in making plastics and polyvinyl chloride and as a refrigerant • Etymology: 1935–40 …   From formal English to slang

  • vinyl chloride — noun Date: 1872 a flammable gaseous carcinogenic compound C2H3Cl that is used especially to make vinyl resins …   New Collegiate Dictionary

  • vinyl chloride — /vaɪnəl ˈklɔraɪd/ (say vuynuhl klawruyd) noun a flammable gas, CH2CHCl, widely used in the plastics industry …   Australian English dictionary

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