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单词 chloroform
释义

chloroform


chlo·ro·form

C0314900 (klôr′ə-fôrm′)n. A clear, colorless, dense, sweet-smelling liquid, CHCl3, used in refrigerants, propellants, and resins, as a solvent, and sometimes as an anesthetic. Chloroform, once widely used in human and veterinary surgery, has generally been replaced by less toxic, more easily controlled agents.tr.v. chlo·ro·formed, chlo·ro·form·ing, chlo·ro·forms 1. To treat with chloroform to anesthetize, render unconscious, or kill.2. To apply chloroform to.
[chloro- + form(yl).]

chloroform

(ˈklɔːrəˌfɔːm) n (Elements & Compounds) a heavy volatile liquid with a sweet taste and odour, used as a solvent and cleansing agent and in refrigerants: formerly used as an inhalation anaesthetic. Formula: CHCl3. Systematic name: trichloromethane [C19: from chloro- + form(yl) (in an obsolete sense that applied to a CH radical)]

chlo•ro•form

(ˈklɔr əˌfɔrm, ˈkloʊr-)

n. 1. a colorless volatile liquid, CHCl3, used chiefly in medicine as a solvent and formerly as an anesthetic. v.t. 2. to administer chloroform to, esp. in order to anesthetize, make unconscious, or kill. [1830–40; chloro-2 + form (yl)] chlo`ro•for′mic, adj.

chlo·ro·form

(klôr′ə-fôrm′) A colorless, toxic, sweet-tasting liquid, CHCl3, used chiefly as a solvent. It was also once widely used as an anesthetic.
Thesaurus
Noun1.chloroform - a volatile liquid haloform (CHCl3)chloroform - a volatile liquid haloform (CHCl3); formerly used as an anesthetic; "chloroform was the first inhalation anesthetic"trichloromethaneinhalation anaesthetic, inhalation anesthetic, inhalation general anaesthetic, inhalation general anesthetic - a gas that produces general anesthesia when inhaledhaloform - compounds with the formula CHX3, where X is a halogen atom
Verb1.chloroform - anesthetize with chloroform; "Doctors used to put people under by chloroforming them"anaesthetise, anaesthetize, anesthetise, anesthetize, put under, put out - administer an anesthetic drug to; "The patient must be anesthetized before the operation"; "anesthetize the gum before extracting the teeth"
Translations
氯仿

chloroform

(ˈklorəfoːm) noun a liquid, the vapour of which, when breathed in, causes unconsciousness. 氯仿 氯仿

chloroform


chloroform

(klôr`əfôrm) or

trichloromethane

(trī'klôrōmĕth`ān), CHCl3, volatile, colorless, nonflammable liquid that has a sweetish taste and a somewhat pungent odor; it boils at 61.7&degC;. It dissolves freely in ethanol and ether but does not mix with water. Chloroform is produced by reaction of chlorine with ethanol and by the reduction of carbon tetrachloride with moist iron. It was once used as a general anesthetic in surgery but has been replaced by less toxic, safer anesthetics, such as ether. Chemically, it is employed as a solvent for fats, alkaloids, iodine, and other substances. When exposed to sunlight and air it reacts to form phosgenephosgene
, colorless poison gas, first used during World War I by the Germans (1915). When dispersed in air, the gas has the odor of new-mowed hay. The gas is highly toxic; when inhaled it reacts with water in the lungs to form hydrochloric acid and carbon monoxide.
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, a poisonous gas.

Chloroform

 

(also trichloromethane), CHCl3, a colorless liquid, with a pungent odor and sweet burning taste. Chloroform has a boiling point of 61.15°C and a density of 1.488 g/cm3 (at 20°C). It is practically insoluble in water but is soluble in most organic solvents. In the light, it is slowly decomposed by atmospheric oxygen with the formation of phosgene, chlorine, hydrogen chloride, and formic acid; consequently, 1 percent ethyl alcohol is added as a stabilizer.

Many reactions of chloroform proceed through the intermediate formation of dichlorocarbene, :CCl2, for example, the synthesis of isocyanides by the reaction of chloroform with primary amines in the presence of alkalies and the reaction of chloroform with the alcoholates RONa, which leads to the formation of ortho esters.

Chloroform is produced by chlorination, for example, of methane, acetone, or alcohol. Considerable chloroform is used in industry in the production of the freon difluorochloromethane, CF2ClH; it is also used as a solvent.

Chloroform is an anesthetic. It exists in two types of preparations. The first is primarily for external use, in medical practice for massages and in histology as a tissue preservative and fixative; occasionally it is used internally in the form of drops to relieve certain symptoms, for example, nausea. The second type of chloroform preparation is used as an anesthetic; it is specially purified and has a strong anesthetizing effect and relatively high toxicity.

chloroform

[′klȯr·ə‚fȯrm] (organic chemistry) CHCl3 A colorless, sweet-smelling, nonflammable liquid; used at one time as an anesthetic. Also known as trichloromethane.

chloroform

a heavy volatile liquid with a sweet taste and odour, used as a solvent and cleansing agent and in refrigerants: formerly used as an inhalation anaesthetic. Formula: CHCl3

chloroform


chloroform

 [klor″o-form] a colorless, mobile liquid with an ethereal odor and sweet taste, used as a solvent; it is hepatotoxic and nephrotoxic when ingested. It was once used widely medicinally, such as for inhalation anesthesia and analgesia.

chlor·o·form

(klōr'ō-fōrm), Formerly used by inhalation to produce general anesthesia; also used as a solvent. Synonym(s): trichloromethane [chlor(ine) + form(yl)]

chloroform

(klôr′ə-fôrm′)n. A clear, colorless, dense, sweet-smelling liquid, CHCl3, used in refrigerants, propellants, and resins, as a solvent, and sometimes as an anesthetic. Chloroform, once widely used in human and veterinary surgery, has generally been replaced by less toxic, more easily controlled agents.tr.v. chloro·formed, chloro·forming, chloro·forms 1. To treat with chloroform to anesthetize, render unconscious, or kill.2. To apply chloroform to.

chlor·o·form

(klōr'ō-fōrm) Formerly used by inhalation to produce general anesthesia; also used as a solvent. [chlor(ine) + form(yl)]

chloroform

A heavy, colourless, volatile liquid once widely used as a pleasant and easy general anaesthetic but now abandoned because of its tendency to cause CARDIAC ARREST and other dangerous complications including delayed liver atrophy.

chlor·o·form

(klōr'ō-fōrm) Formerly used inhalation agent to produce general anesthesia; also used as a solvent.

chloroform


  • all
  • noun
  • verb

Synonyms for chloroform

noun a volatile liquid haloform (CHCl3)

Synonyms

  • trichloromethane

Related Words

  • inhalation anaesthetic
  • inhalation anesthetic
  • inhalation general anaesthetic
  • inhalation general anesthetic
  • haloform

verb anesthetize with chloroform

Related Words

  • anaesthetise
  • anaesthetize
  • anesthetise
  • anesthetize
  • put under
  • put out
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更新时间:2024/9/22 22:26:52