Factbites
 Where results make sense
About us   |   Why use us?   |   Reviews   |   PR   |   Contact us  

Topic: Diethyl ether


Related Topics

In the News (Sun 19 Nov 17)

  
  Diethyl ether Summary
Diethyl ether has the formula CH It is used as a common solvent and has been used as a general anesthetic.
Diethyl ether has a high cetane number of 85 - 96 and is used as a starting fluid for diesel and gasoline engines.
Ether, mixed with ethanol, was marketed in the 19th century as a cure-all and recreational drug, during one of Western society's temperance movements.
www.bookrags.com /Diethyl_ether   (0 words)

  
 Chlorophyll a, diethyl ether
The chemical structure of Chlorophyll a, diethyl ether is shown at the right.
This is a graph of the molar extinction coefficient of Chlorophyll a dissolved in diethyl ether.
This is the fluorescence emission spectrum of Chlorophyll a dissolved in diethyl ether.
omlc.ogi.edu /spectra/PhotochemCAD/html/chlorophyll-a(ether).html   (0 words)

  
 Ether and anaesthesia   (Site not responding. Last check: )
Diethyl ether is a colourless, extremely volatile liquid with a characteristic smell.
Thus the induction of anaesthesia is slow when ether is used as the sole anaesthetising agent prior to surgery.
Dr Henry Bigelow, author of Insensibility during surgical operations produced by inhalation (1846), reports that from his own experience the effects of inhaling sub-anaesthetic doses of pure ether were almost as exhilarating as nitrous oxide "or of the Egyptian haschish" [hashish].
www.general-anaesthesia.com /images/ether.html   (278 words)

  
  HHMI Lab Safety: LCSS: DIETHYL ETHER   (Site not responding. Last check: )
Ether vapor may be ignited by hot surfaces such as hot plates and static electricity discharges, and since the vapor is heavier than air, it may travel a considerable distance to an ignition source and flash back.
Diethyl ether forms unstable peroxides on exposure to air in a reaction that is promoted by light; the presence of these peroxides may lead to explosive residues upon distillation.
Diethyl ether should be handled in the laboratory using the "basic prudent practices" described in Chapter 5.C, supplemented by additional precautions for dealing with extremely flammable substances (Chapter 5.F).
www.hhmi.org /about/labsafe/lcss/lcss30.html   (707 words)

  
 Ethyl Ether
Ethers that have been in contact with air or exposed to light for a long time may contain peroxides; ethers that contain peroxides may explode when the caps or stoppers of their containers are removed.
Before a worker is placed in a job with a potential for exposure to ethyl ether, a licensed health care professional should evaluate and document the worker's baseline health status with thorough medical, environmental, and occupational histories, a physical examination, and physiologic and laboratory tests appropriate for the anticipated occupational risks.
Blood ether concentrations have been found to correlate with both the degree of worker exposure and the extent of intoxication; blood ether concentrations should not exceed a level of about 20 mg/L in asymptomatic workers.
www.osha.gov /SLTC/healthguidelines/ethylether/recognition.html   (3854 words)

  
 chemical history of ether
When we use the term ether today, we mean specifically diethyl ether or perhaps the generic class of compounds of which it is a member.
In the early part of the 19th century, the term "ether" was applied to any volatile including muriatic ether (ethyl chloride) and acetic ether (ethyl acetate).
At this juncture it was clear that ether and water were formed by the action of sub-stoichiometric amounts of sulfuric acid and that sulfovinic acid was formed as an intermediate in the reaction.
classes.yale.edu /02-03/chem220a/studyaids/history/ether/ether.html   (2452 words)

  
 Diethyl ether - Wikipedia, the free encyclopedia
Diethyl ether has the formula CH It is used as a common solvent and has been used as a general anesthetic.
Diethyl ether has a high cetane number of 85 - 96 and is used as a starting fluid for diesel and gasoline engines.
Ether, mixed with ethanol, was marketed in the 19th century as a cure-all and recreational drug, during one of Western society's temperance movements.
en.wikipedia.org /wiki/Diethyl_ether   (682 words)

  
 Erowid Ether Vault: Basics
Ether is not a scheduled substance in the U.S. It is available in several over-the-counter products, especially for automotive use.
Ether was first discovered in 1275 but was not commonly available until the mid 18th century.
Effects from inhaling diethyl ether are relatively short-lived, though, as with many inhalants, users often repeatedly breathe the fumes over a period of time.
www.erowid.org /chemicals/ether/ether_basics.shtml   (258 words)

  
 Asymmetric synthesis of anthracyclines - Experimental
Dry diethyl ether used for the trituations and crystallisations was prepared by allowing the solvent to stand over sodium wire for a minimum of one week.
The crude diene was triturated with dichloromethane-diethyl ether to afford a residue (17 g) and a mother liquor.
Addition of dry diethyl ether to the residue gave the crude cycloadduct (25) (7.837 g), which was crystallised twice from dry dichloromethane-hexanes to afford the title compound (25) (4.61 g, 60%) as a cream solid.
www.jonathanpmiller.com /experimental   (8305 words)

  
 Diethyl ether
Diethyl ether ((CH O), also usually referred as "ether", is an important solvent in organic synthesis.
Ether layer is separated and treated with concentrated solution of calcium chloride (to remove ethanol), later solution is taken in 1/2 amount of obtained distillate (I usually treat it with two portions).
Big volumes of ether, and specially ether that have been standing for a long time, should not be distilled to dryness.
www.frogfot.com /synthesis/dietether.html   (903 words)

  
 Diethyl Ether Freebase   (Site not responding. Last check: )
To recover the freebase diethyl ether is added to the solution: Because freebase is highly soluble in ether a vigorous shaking of the mixture results in the freebase being dissolved in the ether.
To recover the freebase diethyl ether is added to the solution: Since freebase is highly soluble in ether a vigorous shaking of the mixture results in the freebase being dissolved in the ether.
But the technique is potassium highly dangerous because the mixture can easily ignite as fans of Richard Pryor may recall he To recover the freebase diethyl ether is added to the solution: Since freebase is highly soluble in ether a vigorous shaking of the mixture results in the freebase being dissolved in the ether.
www.skxl.net /diethyl-ether-freebase.htm   (272 words)

  
 Spectrum Laboratories : Chemical Fact Sheet - Cas # 60297
Diethyl ether may be released to the environment as a result of its use including use as an
ether are via inhalation of contaminated air and ingestion of contaminated drinking water.
where diethyl ether was found and the avg concn was 4.6 ppb.
www.speclab.com /compound/c60297.htm   (1281 words)

  
 The MSDS HyperGlossary: Ether
Ether is also used as shorthand to refer to one of the most common ethers, diethyl ether, shown above.
Ethers are particularly prone to formation of dangerous peroxides.
The term "petroleum ether" is an old term used to refer to a mixture of hydrocarbons with a specific boiling point range.
www.ilpi.com /msds/ref/ether.html   (512 words)

  
 Generation of Diethyl Ether in an Ethanol Vehicle System for Cold-Start Assistance   (Site not responding. Last check: )
Diethyl ether has a vapor pressure similar to that of winter grade gasoline.
Since diethyl ether is commercially produced from ethanol, the possibility exists that diethyl ether can be produced on-board the vehicle to assist in the cold-starting of the vehicle.
The weight of converter and the amount of diethyl ether produced by the on-board converter would be acceptable for cold-start assistance of an ethanol vehicle system.
www.mines.edu /research/cifer/research/coldstart.html   (366 words)

  
 ETHYL ETHER (Stabilized with ethyl alcohol)
Synonyms: Ether; Ether, anhydrous; Diethyl ether; 1,1'Oxybisethane; Ethyl oxide; Diethyl oxide
Ether is subject to peroxide formation in opened containers and should be protected from exposure to air.
Any ether remaining in opened containers that has not been consumed/used after 2-3 days, should be discarded.
www.uiowa.edu /~chemsafe/MSDS/DiethylEther.html   (1641 words)

  
 Michelson-Morley Experiment
Michelson proceeded to invent a new instrument with accuracy far exceeding that which had been attained to that date, and that instrument is now universally called the Michelson interferometer.
The proponents of an "ether" as a propagating medium for the light were not ready to give up the idea, and proposed that the Earth dragged the ether along with it in its orbit, thus accounting for the negative result of the interferometer experiment.
While proponents for the existence of a medium in space, an "ether", still exist, the standard position is that there is no medium in space.
hyperphysics.phy-astr.gsu.edu /hbase/relativ/mmhist.html   (852 words)

  
 Diethyl ether peroxide - Wikipedia, the free encyclopedia
Diethyl ether peroxides are a class of organic peroxides that slowly form in diethyl ether upon storage under air, light, or in the presence of metal by autoxidation.
Diethyl ether hydroperoxide (CH) is a colorless liquid of low viscosity with a pleasant smell.
The dangerous properties of ether peroxides are the reason that diethyl ether and other peroxide forming ethers like tetrahydrofuran (THF) or ethylenglycoldimethylether (1,2-dimethoxyethane) are avoided in industrial processes.
en.wikipedia.org /wiki/Diethyl_ether_peroxide   (276 words)

  
 Chemical Safety Data: Diethyl Ether
Diethyl ether can be ignited at a very low temperature and constitutes a serious fire risk.
Diethyl ether may react with the oxygen in the air once a container is opened.
Diethyl ether may have a defatting effect on the skin.
physchem.ox.ac.uk /~hmc/hsci/chemicals/diethyl_ether.html   (348 words)

  
 Ether and anaesthesia   (Site not responding. Last check: )
Diethyl ether is a colourless, extremely volatile liquid with a characteristic smell.
Thus the induction of anaesthesia is slow when ether is used as the sole anaesthetising agent prior to surgery.
Dr Henry Bigelow, author of Insensibility during surgical operations produced by inhalation (1846), reports that from his own experience the effects of inhaling sub-anaesthetic doses of pure ether were almost as exhilarating as nitrous oxide "or of the Egyptian haschish" [hashish].
www.general-anaesthetics.com /images/ether.html   (278 words)

  
 Safety & Environmental Management: Biology Laboratory
Diethyl Ether is a solvent in widespread laboratory use (e.g.
Diethyl ether supplied by BDH contains negligible levels of peroxide and anti-oxidants (such as pyrogallol) are added to inhibit peroxide formation.
The use of clear stock bottles that are periodically topped up should be avoided for the good reasons that light encourages peroxide formation and topping-up leads to a build-up of peroxides in the bottle.
www.biology.unimelb.edu.au /safety/ohs21.html   (335 words)

  
 Ether - Wikipedia, the free encyclopedia
In a primary ether this carbon is connected to only one other carbon as in diethyl ether CH An example of a secondary ether is diisopropyl ether (CH and that of a tertiary ether is di-tert-butyl ether (CH Dimethyl ether, a primary, a secondary, and a tertiary ether.
Ethers are hydrolyzed only under drastic conditions like heating with boron tribromide or boiling in hydrobromic acid.
A cyclic ether, one of the most polar simple ethers that is used as a solvent.
en.wikipedia.org /wiki/Ether   (805 words)

  
 Diethyl ether, a chemical asphyxiant used as a prelude to homicide: A report of three cases
Diethyl ether, a chemical asphyxiant used as a prelude to homicide: A report of three cases
In two cases, the distinctive spectra of the volatile compounds in the decedents' blood, from the gas chromatograph and from the gas chromatograph/mass spectrometer, were compared with suspect ether containing products recovered during the scene investigations.
In the other case, the chromatographic spectra differed slightly from the compounds found at the scene, but the difference was explainable by metabolic breakdown of the compounds in vivo.
www.astm.org /DIGITAL_LIBRARY/JOURNALS/FORENSIC/PAGES/2808.htm   (224 words)

  
 Alkenyl Grignards, Grignard Reagents and Derivatives, Pentagon Chemical Specialties, UK
Pentagon is able to produce a number of Grignard reagents in standard concentrations.
Typical solvent systems include Diethyl ether, Di-n-butyl ether, Tetrahydrofuran and Methyl tertiary-butyl ether.
Pentagon are one of only a few companies with a purpose-built Grignard facility which was designed to excel at producing materials from this demanding chemistry.
www.pentagon-chemical-specialties.com /pages/group/subgroup/subgroup=alkenylgrignards/group=grignard   (285 words)

  
 Safety (MSDS) data for diethyl ether
Click here for data on diethyl ether in student-friendly format, from the HSci project
The information on this web page is provided to help you to work safely, but it is intended to be an overview of hazards, not a replacement for a full Material Safety Data Sheet (MSDS).
Vapour may travel considerable distances to ignition sources, which need not be an open flame, but may be a hot plate, steam pipe, etc. Vapour may be ignited by the static electricty which can build up when ether is being poured from one vessel into another.
ptcl.chem.ox.ac.uk /MSDS/DI/diethyl_ether.html   (0 words)

  
 Diethylene Glycol Monobutyl Ether, ?Butyl Diglycol, Butyl Carbitol, 2 (2-Butoxy Ethoxy) Ethanol
Diethylene Glycol Monobutyl Ether is chemically known as a Butyl Diglycol, Diethylene Glycol Mono-n-butyl ether, 2-hydroxy-2butoxy-diethyl ether.
Commercially it is known as a Butyl Carbitol, which is a trademark of Union Carbide.
Diethylene Glycol Monobutyl Ether is used primarily in the manufacturing of lacquers based on nitrocellulose, cellulose ethers and chlorinated rubber.
www.advancepetro.com /dgmbe.htm   (265 words)

  
 Medical Dictionary: Diethyl ether - WrongDiagnosis.com - WrongDiagnosis.com
Diethyl ether: An organic compound in which two carbon atoms are linked through an oxygen atom (C-O-C).
Ether also refers loosely to diethyl-ether, a colorless, volatile, highly inflammable liquid used in industry and biomedical research, and historically important as an anesthetic agent.
In vivo, ether acts similarly to alcohol and chloroform, but its stimulant action on the heart is much more marked.
www.wrongdiagnosis.com /medical/diethyl_ether_printer.htm   (237 words)

  
 NTP: Abstract for Teratology: Ethylene glycol diethyl ether
Ethylene glycol diethyl ether (EGDE), a member of the glycol ether class of industrial solvents, was evaluated for toxic and teratogenic effects In timed-pregnant CD-1 mice.
A significant increase in the percent litters with one or more malformed fetuses was observed at 150 mg/kg/day, whereas a significant increase in other measures of developmental toxicity was observed at doses of 500 mg/kg/day and above.
At 500 and 1000 mg/kg/day, a dose-related increase in the incidence of craniofacial malformations, similar to those seen after exposure of experimental animals to other glycol ethers, was observed.
ntp-server.niehs.nih.gov /index.cfm?objectid=07303E01-E87B-2805-E33AE94318339B0D   (484 words)

  
 Williamson Ether Synthesis Mechanism
The Williamson ether synthesis is a reaction that converts alcohols (R-OH) into ethers (R-O-R).
The alcoxide can then be added to a suitable alkyl halide (typically a primary halide) to form the ether via an S
An example of the Williamson ether synthesis to make diethyl ether.
www.chemhelper.com /williamsonether.html   (92 words)

Try your search on: Qwika (all wikis)

Factbites
  About us   |   Why use us?   |   Reviews   |   Press   |   Contact us  
Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.