A Halogenated Ether is a subcategory of a larger group of chemicals known as ethers. An ether is an organic chemical that contains an ether group — an oxygen atom connected to two (substituted) alkyl groups. A good example of an ether is the solvent diethyl ether. Ether is the general name for a class of chemical compounds which contain an ether group — an oxygen atom connected to two (substituted) alkyl groups. ... An organic compound is any of a large class of chemical compounds whose molecules contain carbon, with exception of carbides, carbonates and carbon oxides. ... General Name, Symbol, Number oxygen, O, 8 Chemical series nonmetals Group, Period, Block 16, 2, p Appearance colorless Atomic mass 15. ... Properties For alternative meanings see atom (disambiguation). ... An Alkyl is a univalent radical containing only carbon and hydrogen atoms arranged in a chain. ... Diethyl ether, also known as ether and ethoxyethane, is a clear, colorless, and highly flammable liquid with a low boiling point and a typical smell. ...

What differentiates a halogenated ether from other types of ethers is the substitution (or halogenation) of one or more hydrogen atoms with a halogen atom. Halogen atoms include fluorine, chlorine, bromine, and iodine. Technically, the element astatine is also a halogen, but due to a number of factors it is rarely, if ever, used in organic chemistry. In chemistry, halogenation is a chemical reaction that replaces a hydrogen atom with a halogen atom. ... For the halogen light bulb, click here. ... General Name, Symbol, Number fluorine, F, 9 Chemical series halogens Group, Period, Block 17, 2, p Appearance pale greenish-yellow gas Atomic mass 18. ... General Name, Symbol, Number chlorine, Cl, 17 Chemical series halogens Group, Period, Block 17, 3, p Appearance yellowish green Atomic mass 35. ... General Name, Symbol, Number bromine, Br, 35 Chemical series halogens Group, Period, Block 17, 4, p Appearance gas/liquid: red-brown solid: metallic luster Atomic mass 79. ... General Name, Symbol, Number iodine, I, 53 Chemical series halogens Group, Period, Block 17, 5, p Appearance violet-dark gray, lustrous Atomic mass 126. ... General Name, Symbol, Number Astatine, At, 85 Series Halogens Group, Period, Block 17 (VIIA), 6, p Density, Hardness no data, no data Appearance metallic Atomic properties Atomic weight [210] amu Atomic radius no data Covalent radius 127 pm van der Waals radius no data Electron configuration [Xe]4f14 5d10 6s2...

Perhaps the most common use of halogenated ethers has been in anesthesiology. The first widely used inhalation anesthetic was diethyl ether, which is not a halogenated ether, but it enabled surgeons to perform painful surgeries without the patient being conscious. Unfortunately for doctors of that era, diethyl ether has the disadvantage of being extremely flammable and in some cases, explosive. Occasionally, this led to fires or explosions during surgery, and is one of the reasons that diethyl ether is no longer used in hospital settings. It is still commonly used as a solvent in organic chemistry labs, though with caution. In some countries, diethyl ether was eventually replaced with non-flammable (but more toxic) halogenated hydrocarbons such as chloroform and trichloroethane. Much later, safer halogenated hydrocarbon anesthetics such as halothane were developed. Anesthesia (AE), also anaesthesia (BE), is the process of blocking the perception of pain and other sensations. ... Anesthesia (AE), also anaesthesia (BE), is the process of blocking the perception of pain and other sensations. ... Diethyl ether, also known as ether and ethoxyethane, is a clear, colorless, and highly flammable liquid with a low boiling point and a typical smell. ... Halogenated hydrocarbons are hydrocarbons where in one or more of the hydrogen atoms has been replaced by halogen atoms; either fluorine, chlorine, bromine or iodine or possible two or more different halogens. ... PEL-TWA (OSHA) 50 ppm (240 mg/m3) IDLH (NIOSH) 500 ppm Flash point non-flammable RTECS number FS9100000 Supplementary data page Structure & properties n, εr, etc. ... The chemical compound 1,1,1-trichloroethane is a chlorinated hydrocarbon that was until recently widely used as an industrial solvent. ... Structural formula of halothane Halothane vapour is an inhalational general anaesthetic. ...

Halogenated ethers have replaced most other compounds for use as inhalation anesthetics. Halogenated ethers have the advantages of being non-flammable as well as less toxic than earlier general anesthetics. Halogenated ethers differ from other ethers because they contain at least one halogen atom in each molecule. Examples of halogenated ethers include the general anethetics isoflurane, desflurane, and sevoflurane. For the halogen light bulb, click here. ... Isoflurane (1-chloro-2,2,2-trifluoroethyl difluoromethyl ether) is a halogenated ether used for inhalation anesthesia. ... Categories: Stub | Anesthetics ... Sevoflurane (2, 2, 2-trifluoro-1-(trifluoromethyl) ethyl ether), also called fluoromethyl, is a halogenated ether used for induction and maintenance of general anesthesia. ...

Currently, all inhalation anesthetics except for halothane are halogenated ethers, and when used, are always mixed with oxygen or air and then inhaled by the patient before or during surgery. In most surgical situations, other drugs such as opiates are used for pain and skeletal muscle relaxants are used to cause temporary paralysis. Additional drugs such as midazolam may be used to produce amnesia during surgery. Structural formula of halothane Halothane vapour is an inhalational general anaesthetic. ... An opioid is any agent that binds to opioid receptors found principally in the central nervous system and gastrointestinal tract. ... In medicine, a muscle relaxant is a drug that causes skeletal muscle contraction to cease. ... Midazolam, also known by the trade names Versed®, Hypnovel® and Dormicum®, is a benzodiazepine drug with an imidazole structure. ...

Newer intravenous anesthetics (such as propofol) have increased the options of anesthesiologists, but halogenated ethers remain a mainstay of general anesthesia. Propofol is an intravenous anesthetic agent used for the induction of general anesthesia in adult patients and pediatric patients older than 3 years of age; maintenance of general anesthesia in adult patients and pediatric patients older than 2 months of age; and intensive care unit (ICU) sedation for intubated, mechanically... In modern medical practice, general anaesthesia is a complex procedure involving: preanaesthetic assessment administration of general anaesthetic drugs cardirespiratory monitoring analgesia airway management fluid management Contents // Categories: Anesthesia | Medicine stubs ...

See also

• ether
• halogen
• halogenation
• hydrocarbon