ethylene oxide

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ethylene

 [eth´ĭ-lēn]
a colorless, highly flammable gas with a slightly sweet taste and odor, used as an inhalation anesthetic to induce general anesthesia.
ethylene glycol a solvent with a sweet, acrid taste, used as an antifreeze. Acute poisoning by ingestion can result in central nervous system depression, vomiting, hypotension, coma, convulsions, renal damage, and death. While damage is thought to be due to the formed oxalic acid, ethanol is a good treatment because it competitively inhibits alcohol dehydrogenase. The unaltered ethylene glycol is then excreted in the urine.
ethylene oxide a gaseous, flammable alkylating agent with a broad spectrum of activity, capable of killing both spores and viruses; it must be mixed with CO2 or fluorocarbons because it is explosive above 3 per cent. It is used in hospitals, surgery, dentistry, and the pharmaceutical and other industries for disinfecting and sterilizing instruments and equipment that would be destroyed by heat or would be adversely affected by immersion in water or other media. Its optimal germicidal effect occurs after a 3-hour exposure at 30°C.ƒ

Ethylene oxide is toxic because it alkylates tissue constituents; it is carcinogenic and may produce adverse reproductive effects. Inhalation may cause nausea, vomiting, and neurological disorders, and severe exposure may be fatal. Before items exposed to ethylene oxide can be used they must be aired for 5 days at room temperature or for 8 hours at 120° C to remove any trace of the gas. This is also true for articles of clothing, such as gloves and shoes, that have been exposed, because chemical burns can occur when the contaminated clothing comes in contact with the skin.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

eth·yl·ene ox·ide

a fumigant, used for cold sterilization of surgical instruments.
Synonym(s): oxirane
Farlex Partner Medical Dictionary © Farlex 2012

ethylene oxide

Occupational medicine A gas used to sterilize medical supplies and other materials
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

eth·yl·ene ox·ide

(ethi-lēn oksīd)
Fumigant, used for cold sterilization of surgical instruments.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
As the most utilized epoxide, epoxyethane is a useful and important intermediate for industrial chemical production including agricultural chemicals, pharmaceuticals, and polymers and accounts for nearly 40-50% of the total value of organic chemicals [1].
One biocatalytic method for producing epoxyethane is using enzymes to insert oxygen across the carbon double bonds of ethylene.
In spite of this progress, reaction conditions for biocatalytic ethylene epoxidation and the effect of epoxyethane on MMO catalytic performance have not yet been fully elucidated.
In the present study, we aim at using whole cell suspension of Methylosinus trichosporium IMV 3011 for the biosynthesis of epoxyethane from ethylene.
The epoxyethane concentration was determined at different reaction times.
Relation of Accumulation of Epoxyethane with Initial Concentration of Ethylene.
Figure 4 shows the effect of methane concentration on the epoxyethane production capacity of MMO.
The results in Figure 5 show that 10% methane initial gas phase exhibits a positive effect on epoxyethane production in batch experiments.
Epoxyethane production by whole cell suspension of Methylosinus trichosporium IMV 3011 in the presence of different concentrations of methanol is shown in Figure 6.
Inhibitory Effect of Epoxyethane Production on the Epoxidation of Ethane.