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see furfuralfurfural
or furfuraldehyde
[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;.
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(also tetramethylene oxide or furanidine), a colorless liquid with an ether-like odor. Tetrahydrofuran is miscible with water and many organic solvents. It boils at 65.6°C and has a density of 0.889 g/cm3 at 20°C.

Tetrahydrofuran is obtained by the catalytic hydrogenation of furan. It is typically used as a solvent for polyvinyl chloride or to replace ethyl ether in the laboratory synthesis of organomagnesium compounds, particularly magnesium vinyl bromide. The products of the homopolymerization and copolymerization of tetrahydrofuran are used as starting materials in the manufacture of urethane rubbers.


(organic chemistry)
C4H8O A clear, colorless liquid with a boiling point of 66°C; soluble in water and organic solvents; used as a solvent for resins and in adhesives, printing inks, and polymerizations. Abbreviated THF.
References in periodicals archive ?
ref] denote the net retention volumes of tetrahydrofurane, chloroform, and n-alkane, respectively, which have the same selected property like boiling point.
After different durations of the storage, the solid pyrolyzed product was extracted exhaustively in Soxhlet extractor successively with hexane, benzene and tetrahydrofurane.
2,4-Dihydroxy benzaldehyde (DHB), 2-amino-3-methylpyridine (3-MAP), 2-amino-4-methylpyridine (4-MAP), 2-amino-6-methylpyridine (6-MAP), 2,4-toluene-diisocyanate (TDI), dimethylformamide (DMF), dimethylsulfoxide (DMSO), tetrahydrofurane (THF), methanol (MeOH), ethanol (EtOH), acetone, acetonitrile, toluene, ethyl acetate, CH[Cl.
The liquid product (water + thermobitumen + oil) was extracted with hexane and tetrahydrofurane.
Copolyoxadiazoles II were also soluble in less polar liquids, like pyridine or tetrahydrofurane (THF).
Solubility properties of the PCN films were investigated by immersing them into various solvents such as N-methyl-2-pyrrolidone (NMP), tetrahydrofurane (THF), dichloromethane (Me[Cl.
Traces of catalyst and other impurities were removed by a threefold precipitation with methanol (HPLC grade) from a solution of tetrahydrofurane (THF, HPLC grade), with subsequent vacuum desiccation.