| 单词 | methylene chloride |
| 释义 | > as lemmasmethylene chloride methylene chloride n. the organic solvent dichloromethane, CH2Cl2. ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > alkanes > alkane derivatives iodomethane1868 dichloromethane1869 nitromethane1872 methylene chloride1880 diazomethane1894 methylene dichloride1895 1880 Jrnl. Chem. Soc. 38 307 Methylene chloride, CH2Cl2, is best obtained by cautiously adding hydrochloric acid to a mixture of alcohol, chloroform, and metallic zinc. 1953 O. E. Anderson Refrigeration in Amer. xii. 193 Other absorption machines were brought out for air-conditioning work. One of these used methylene chloride as the refrigerant. 1973 Oxf. Univ. Gaz. 103 Suppl. 5. 10 The goddess has now been degreased with lustrations of methylene chloride and acetone. 1989 Which? Oct. 480/1 Flexible foam manufacturers are switching in the short term to methylene chloride, but they plan to use alternative CFCs when available. < as lemmas |
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