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methyl chloride

noun, Chemistry
1.
a colorless, poisonous gas, CH 3 Cl, used chiefly as a refrigerant, as a local anesthetic, and as a methylating agent in organic synthesis.
Also called chloromethane.
Origin
1875-1880
1875-80
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for methyl chloride
  • Low levels of methyl chloride occur naturally in the environment.
  • The first accident involved an ongoing release of methyl chloride from process equipment that went unnoticed for five days.
  • Fragmentation of methyl chloride studied by partial positive and negative ion-yield spectroscopy.
  • Physiological response attending exposure to vapors of methyl bromide, methyl chloride, ethyl bromide and ethyl chloride.
British Dictionary definitions for methyl chloride

methyl chloride

noun
1.
a colourless gas with an ether-like odour, used as a refrigerant and anaesthetic. Formula: CH3Cl Systematic name chloromethane
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for methyl chloride

chloromethane

a colourless, flammable, toxic gas. Methyl chloride is primarily prepared by reaction of methanol with hydrogen chloride, although it also can be prepared by chlorination of methane. Annual production in the United States alone is in the hundreds of millions of kg, half of which is converted to dichlorodimethylsilane for the preparation of silicone polymers. Methyl chloride is also employed as a methylating agent to attach CH3 groups to oxygen (as in methylcellulose) and nitrogen (as in quaternary ammonium salts) and as a solvent for the low-temperature preparation of butyl rubber. It is used to prepare dichloromethane (methylene chloride) as well.

Learn more about chloromethane with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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