| 单词 |
perchloroethylene |
| 释义 |
perchloroethylene Chem.|pəˌklɔərəʊˈɛθɪliːn|
Also perchlorethylene.
[ad. G. perchloräthylen, f. per- per-1 5 + chlor- chloro- + äthylen ethylene.]
A colourless, non-flammable, toxic liquid, C2Cl4, which is widely used as a solvent, esp. in dry cleaning fluid, and medicinally for the treatment of worm infestations; = tetrachloroethylene.
1873Jrnl. Chem. Soc. XXVI. 866 The action of sodium ethylate on perchloroethylene has been studied by Fischer and Geuther. 1875Ibid. XXVIII. 746 The distillate which comes over slowly consists of perchlorethylene holding in solution aniline and carbon sesquichloride. 1954A. K. Doolittle Technol. Solvents & Plasticizers xii. 720 Perchloroethylene finds use as a dry-cleaning, metal-degreasing, and rubber solvent, and as an anthelmintic. 1963Economist 12 Jan. 115/2 The customer can watch her clothes tumbling through a solvent (perchlorethylene). 1971Daily Tel. 10 June 1/4 Perchloroethylene can cause drowsiness, coma and death if taken in sufficient quantities. 1976Sci. Amer. May 52/2 The apparatus..basically consists of a tank of 100,000 gallons of the common dry-cleaning fluid perchloroethylene. |
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单词 perchloric 释义 perchloric, a. Chem.|pklrk|[f. per-1 5 b + chloric.]In perchloric aci......