ethylene glycol

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ethylene glycol:

see glycolglycol
, dihydric alcohol in which the two hydroxyl groups are bonded to different carbon atoms; the general formula for a glycol is (CH2)n(OH)2.
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The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Ethylene Glycol


(also 1,2-ethanediol), HOCH2CH2OH, the simplest of the glycols.

Ethylene glycol takes the form of a colorless, viscous liquid with a sweet taste. It has a melting point of – 12.3°C, a boiling point of 196°C, and a density of 1.113 g/cm3 at 20°C. Miscible in all proportions with water, alcohol, and acetone, it is poorly soluble in ether and insoluble in chloroform, aliphatic hydrocarbons, and aromatic hydrocarbons. Ethylene glycol is hygroscopic.

An important property of ethylene glycol is its capacity to produce a marked lowering of the freezing point of water. A 40-percent solution of ethylene glycol in water has a freezing point of – 25°C, and a 60-percent solution has a freezing point of – 40°C. For this reason, ethylene glycol is commonly used in the manufacture of antifreezes.

Similar to other dihydric alcohols, ethylene glycol forms monoglycolates and diglycolates (such as HOCH2CH2ONa and NaOCH2CH2ONa), ethers, and esters. Among the other derivatives of ethylene glycol are cellusolves (the monoethers HOCH2CH2OR, where R is a hydrocarbon) and polyesters, including polyethylene terephthalate, that have the general formula (—OCH2CH2OCO—R—CO—)n; cellosolves are used as solvents, and ethylene glycol polyesters are used in the preparation of Dacron and similar synthetic fibers (seeLAVSAN and POLYESTER FIBER). Nitroglycol, a diester of ethylene glycol and nitric acid, is an explosive.

The principal industrial method for the production of ethylene glycol is the hydration of ethylene oxide at a pressure of 10 atmospheres and a temperature of 190°-200°C (or at 1 atmosphere and 50°-100°C) in the presence of 0.1–0.5 percent sulfuric or ortho-phosphoric acid; diethylene glycol and a small quantity of higher polymeric homologues of ethylene glycol are formed as by-products in this process. Ethylene glycol is used on a limited scale as a solvent for printer’s inks and certain other dyes, and it is used in the production of various inks, including inks for ball-point pens. It is also used in organic synthesis. Ethylene glycol is toxic.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

ethylene glycol

[′eth·ə·lēn ′glī‚kȯl]
(organic chemistry)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

ethylene glycol

A type of alcohol, completely miscible in water, used in latex and water-based paints to provide stability when frozen; used in heating and cooling systems as a fluid for transferring heat.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
The lactate gap between an arterial blood gas and a venous blood sample is therefore mainly the presence of ethylene glycol metabolites glycolate and glyoxylate, which are cross-reacting with the point-of-care analyzer.
It should be noted that ethylene glycol was also found to play the role of a protective layer on the particle surfaces preventing them from agglomerating which might occur via interactions between OH groups and nickel atoms [30, 31].
It has been reported that clinically evident toxicity is usually seen with serum ethylene glycol levels of >20 mg/dL.
Ethylene glycol increases the elongation at break to at least 680%, for 8 wt% ethylene glycol, and rises up to 1658% for higher content, while that of the pure latex shows an elongation at break of 483%.
The investigations show that the interaction effect between applied treatments are appeared that by using of poly ethylene glycol concentrated 0.99 mega paschal with Aminol forte, huimny forte, Kadostim, Kinetine, 6-Benzylamino purine + Kinetine and also water purred can be success on dormancy break and boosted the characters related to germination will be increased on Fennel and its bad effects is less and on the other hand, using of lower concentrations reduces this features or it may be avoided generally (table 3).
Rapid and specific quantification of ethylene glycol levels: adaptation of a commercial enzymatic assay to automated chemistry analyzers.
Not many researchers have used polyethylene glycol and ethylene glycol as additives in sol-gel technique.
To study the effect of fluid properties, two different fluids, water and ethylene glycol, have been considered in this paper.
Most antifreeze products are 95 percent ethylene glycol, a potent alcohol that is readily absorbed once it is ingested.
CoolFlow DTX, based on ethylene glycol blended with patented DeToxIm additive, exploits the advantages of ethylene glycol over propylene glycol; a lower volume will give the same freeze protection, and it is easier to pump, especially at lower temperatures.
Continuing its promise to build up the worldwide capacity to produce plant-based mono ethylene glycol for its PET bottles, Coca-Cola Co.

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