| 释义 |
Definition of chloral in English: chloralnoun ˈklɔːralˈklɔrəl mass nounChemistry 1A colourless, viscous liquid made by chlorinating acetaldehyde. 〔化〕氯醛 Chemical formula: CCl₃CHO Example sentencesExamples - DDT is produced from the chlorobenzene and trichloroethanal (trichloroacetaldehyde or chloral), which react in the presence of concentrated sulfuric acid.
- When dissolved in water, trichloroethanal exists primarily in its hydrate form, chloral hydrate (commonly known as ‘knock-out drops’).
- More preferably, the halogen-containing aldehyde, acetal or hemiacetal is selected from trichloroethanal, 2,2, 2-trichloro - 1-ethoxy ethanol and mixtures thereof.
- 1.1
short for chloral hydrate Example sentencesExamples - Depressed about losing Lucy, he considers taking chloral to sleep, but decides against it.
- Up to his neck in the reputedly healing waters, Daudet read Montaigne; and in private consumed huge amounts of morphine, chloral and bromide in an attempt to palliate his excruciating pains.
- He had given up painting in 1878 and existed in the bohemian squalor of his Chelsea mansion, in a state of deep melancholy, sustained by a diet of 180 grains of chloral a day, washed down with whisky.
- If chlorine gas is bubbled through ethanal, the hydrogen atoms of the methyl group are replaced by chlorine atoms to give chloral.
OriginMid 19th century: from French, blend of chlore 'chlorine' and alcool 'alcohol'. Definition of chloral in US English: chloralnounˈklɔrəlˈklôrəl Chemistry 1A colorless, viscous liquid made by chlorinating acetaldehyde. 〔化〕氯醛 Alternative name: trichloroethanal; chemical formula: CCl₃CHO Example sentencesExamples - More preferably, the halogen-containing aldehyde, acetal or hemiacetal is selected from trichloroethanal, 2,2, 2-trichloro - 1-ethoxy ethanol and mixtures thereof.
- When dissolved in water, trichloroethanal exists primarily in its hydrate form, chloral hydrate (commonly known as ‘knock-out drops’).
- DDT is produced from the chlorobenzene and trichloroethanal (trichloroacetaldehyde or chloral), which react in the presence of concentrated sulfuric acid.
- 1.1
short for chloral hydrate Example sentencesExamples - Up to his neck in the reputedly healing waters, Daudet read Montaigne; and in private consumed huge amounts of morphine, chloral and bromide in an attempt to palliate his excruciating pains.
- Depressed about losing Lucy, he considers taking chloral to sleep, but decides against it.
- He had given up painting in 1878 and existed in the bohemian squalor of his Chelsea mansion, in a state of deep melancholy, sustained by a diet of 180 grains of chloral a day, washed down with whisky.
- If chlorine gas is bubbled through ethanal, the hydrogen atoms of the methyl group are replaced by chlorine atoms to give chloral.
OriginMid 19th century: from French, blend of chlore ‘chlorine’ and alcool ‘alcohol’. |