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单词 dichlorodifluoromethane
释义

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dichlorodifluoromethane
dichlorodifluoromethane n.
Brit. /dʌɪˌklɔːrə(ʊ)dʌɪˌflʊərə(ʊ)ˈmiːθeɪn/
,
/dʌɪˌklɔːrə(ʊ)dʌɪˌflɔːrə(ʊ)ˈmiːθeɪn/
,
U.S. /daɪˈˌklɔroʊdaɪˌflʊroʊˈmɛˌθeɪn/
,
/daɪˈˌklɔroʊdaɪˌflɔroʊˈmɛˌθeɪn/
an easily liquefied, unreactive gas used (esp. formerly) as a refrigerant and aerosol propellant.Formula: CCl2F2.
ΚΠ
1930 G. W. Jones & G. St J. Perrott (U. S. Bureau Mines) (title) Extinction of methane flames by dichloro-difluoro-methane.
1976 Science 8 Oct. 171/1 Trichlorofluoromethane and dichlorodifluoromethane (CFCl3 and CF2Cl2, the halocarbons implicated in ozone damage).
2006 Akron (Ohio) Beacon Jrnl. (Nexis) 2 Sept. b3 Downwind samples just off the landfill showed levels of the chemicals ranging from acetone at 6.4 parts per billion to dichlorodifluoromethane at 0.55 parts per billion.
extracted from dichloro-comb. form
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更新时间:2024/11/11 5:59:23