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(fûr`fərəl) or


(fûr'fərăl`dəhīd) [Lat.,=bran], C4H3OCHO, viscous, colorless liquid that has a pleasant aromatic odor; upon exposure to air it turns dark brown or black. It boils at about 160°C;. It is commonly used as a solvent; it is soluble in ethanol and ether and somewhat soluble in water. Furfural is the aldehydealdehyde
[alcohol + New Lat. dehydrogenatus=dehydrogenated], any of a class of organic compounds that contain the carbonyl group, , and in which the carbonyl group is bonded to at least one hydrogen; the general formula for an aldehyde is RCHO, where R is hydrogen
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 of pyromucic acid; it has properties similar to those of benzaldehyde. A derivative of furan, it is prepared commercially by dehydration of pentose sugars obtained from cornstalks and corncobs, husks of oat and peanut, and other waste products. It is used in the manufacture of pesticides, phenolfurfural resins, and tetrahydrofuran. Tetrahydrofuran is used as a commercial solvent and is converted in starting materials for the preparation of nylonnylon,
synthetic thermoplastic material characterized by strength, elasticity, resistance to abrasion and chemicals, low moisture absorbency, and capacity to be permanently set by heat. After 10 years of research E. I.
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a yellowish liquid with the odor of fresh rye bread. Furfural has the structural formula

It has a boiling point of 161.7°C and a density of 1.16 g/cm3 at 20°C. Moderately soluble in water, it is readily soluble in alcohol and ether. Its chemical properties are similar to those of benzaldehyde.

Furfural is obtained by the hydrolysis of vegetable matter, such as corn stumps, rice offal, and other materials that contain pentosan. Furfural serves as a raw material in the preparation of furan, tetrahydrofuran, and tetrahydrofuryl alcohol and in the manufacture of furan resins, fungicides, and such pharmaceuticals as Furacin. It is also used in the refining of lubricating oils in the petroleum industry.

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


(organic chemistry)
C4H3OCHO When pure, a colorless liquid, soluble in organic solvents, slightly soluble in water; used as a lube oil-refining solvent, in cellulosic formulations, in making resins, as a weed killer, as a fungicide, and as a chemical intermediate. Also known as 2-furaldehyde; furfuraldehyde; furfurol; furol.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
In contrast, furfural and furfuryl alcohol are non-genotoxic compounds; and therefore, has a safe ingestion parameter set by JECFA (acceptable summative daily intake (ADI) of 500pg [kg.sup.-1] BW) (JECFA, 2000).
In a round bottom flask (25 mL) containing furfural (13.86 mmol), ammonium acetate (6.93 mmol) or furfurylamine (6.93 mmol) was slowly added.
Furfural and 5-hydroxymethyl furfural (HMF) are the byproducts of pentoses and hexoses respectively.
Pectin Furfural Alginate Undecane, dodecane, styrene, benzene.
(2007) reported that concentrations above 3 g [L.sup.-1] of acetic acid, 1.5 g [L.sup.-1] of hydroxymethylfurfural and 1 g [L.sup.-1] of furfural have toxic effect enough to inhibit the action of microorganisms in the fermentation process.
Slininger, Gorsich and Liu (2009) observed that in a medium containing xylose, as the only carbon source, there was an increase in yeast resistance to furfural and hydroxymethyl furfural exposure.
First, furfural extraction oil was added to the flowing virgin asphalt and quickly heated to 175[degrees]C-180[degrees]C.
Discharge of organic wastes such as furfural from petrochemical installations, oil refineries, and other chemical industrial plants into the environment is an important source of water pollution.
Previous reports revealed that contents of 5-hydroxymethyl furfural (5-HMF) in SA could be increased highly after processing [42].