furfural

[′fər·fə‚ral]

(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.

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Furfural

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.

Mentioned in

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).

Exposure risk to carbonyl compounds and furfuryl alcohol through the consumption of sparkling wines/Risco da exposicao a compostos carbonilicos e alcool furfurilico atraves do consumo de espumantes

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.

Synthesis and Polymerization of Naphthoxazines Containing Furan Groups: An Approach to Novel Biobased and Flame-Resistant Thermosets

Pectin Furfural Alginate Undecane, dodecane, styrene, benzene.

Comparison of Thermal Decomposition of Polystyrene Products vs. Bio-Based Polymer Aerogels

Furfural was not detected, suggesting the absence of the pentose polymers.

Optimized acid hydrolysis of the polysaccharides from the seaweed Solieria filiformis (Kutzing) P.W. Gabrielson for bioethanol production/Hidrolise acida otimizada dos polissacarideos da macroalga Solieria filiformis (Kutzing) P.W. Gabrielson para producao de bioetanol

(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.

Bioconversion of hydrolyzed cashew peduncle bagasse for ethanol and xylitol production/Bioconversao do hidrolisado do bagaco do pedunculo do caju para producao de etanol e xilitol

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.

Effect of inhibitors on ethanol production by Pichia stipitis in a complex culture media/Efeito de inibidores na producao de etanol por Pichia stipitis em um meio de cultura complexo

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.

Enhanced Photocatalytic Degradation and Mineralization of Furfural Using UVC/Ti[O.sub.2]/GAC Composite in Aqueous Solution

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