Search results
Results From The WOW.Com Content Network
Most diethyl ether is produced as a byproduct of the vapor-phase hydration of ethylene to make ethanol.This process uses solid-supported phosphoric acid catalysts and can be adjusted to make more ether if the need arises: [9] Vapor-phase dehydration of ethanol over some alumina catalysts can give diethyl ether yields of up to 95%.
Since 1982, ether is not used in the United States. [7] Now, because of the use of intravenous induction agents with muscle relaxants and the discontinuation of ether, elements of Guedel's classification have been superseded by depth of anaesthesia monitoring devices such as the BIS monitor; [5] however, the use of BIS monitoring remains ...
Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide ... log 10 of Diethyl Ether vapor pressure. Uses formula: ...
The Meyer-Overton correlation for anaesthetics. A nonspecific mechanism of general anaesthetic action was first proposed by Emil Harless and Ernst von Bibra in 1847. [9] They suggested that general anaesthetics may act by dissolving in the fatty fraction of brain cells and removing fatty constituents from them, thus changing activity of brain cells and inducing anaesthesia.
Diethyl ether has a long history as a medical anesthetic; when starting fluid was mostly ether, a similar effect could be obtained using it. Use at the present time directly as an inhalant includes the effect of the petroleum solvents, which are more toxic as inhalants than diethyl ether. [7] [8]
Several entrainers can be used for this specific process: benzene, pentane, cyclohexane, hexane, heptane, isooctane, acetone, and diethyl ether are all options as the mixture. [2] Of these benzene and cyclohexane have been used the most extensively, but since the identification of benzene as a carcinogen, toluene is used instead. [citation needed]
HGH supports several functions in the body — from growth, to muscle and bone strength, to the distribution of body fat, says Dr. Katie O'Sullivan, MD, an assistant professor of Adult & Pediatric ...
A cyclic ether, one of the most polar simple ethers that is used as a solvent. Anisole (methoxybenzene) An aryl ether and a major constituent of the essential oil of anise seed. Crown ethers: Cyclic polyethers that are used as phase transfer catalysts. Polyethylene glycol (PEG) A linear polyether, e.g. used in cosmetics and pharmaceuticals.