Furfural

99%

Sinônimo(s):

2-Furaldehyde, Furan-2-carboxaldehyde

Empirical Formula (Hill Notation):

C₅H₄O₂

Número CAS:

98-01-1

Peso molecular:

96.08

Beilstein:

105755

Número EC:

202-627-7

Número MDL:

MFCD00003229

eCl@ss:

39150703

ID de substância PubChem:

57647750

NACRES:

NA.21

densidade de vapor

3.31 (vs air)

Nível de qualidade

100

pressão de vapor

13.5 mmHg ( 55 °C)

Ensaio

99%

forma

liquid

temperatura de autoignição

599 °F

Lim. expl.

19.3 %

índice de refração

n20/D 1.525 (lit.)

pb

162 °C (lit.)

pf

−36 °C (lit.)

densidade

1.16 g/mL at 25 °C (lit.)

SMILES string

[H]C(=O)c1ccco1

InChI

1S/C5H4O2/c6-4-5-2-1-3-7-5/h1-4H

InChI key

HYBBIBNJHNGZAN-UHFFFAOYSA-N

Descrição geral

Furfural is a heterocyclic aldehyde. It can be produced from agricultural raw materials containing pentosans[1] and lignocellulosic feedstock.[2] It is also obtained from xylose, via dehydration. Furan has various interesting properties, such as it thermosets easily, has physical strength and exhibits resistance to corrosion. It is a raw material for the production of various furan-based chemicals and solvents such as:[3]

methylfuran

furfuryl alcohol

tetrahydrofurfuryl alcohol

tetrahydrofuran

methyltetrahydrofuran

dihydropyran

furoic acid

Aplicação

Furfural has been employed as a standard for the HPLC quantification of furfural in the autohydrolysate liquor obtained from microwave-irradiated maize bran.[4] It may be used in the preparation of γ-valerolactone (GVL)[5] and biofuel 2-methylfuran (51% yield).[6]

Furfural undergoes hydrogenation in the vapor-phase over copper-containing catalysts to form furfuryl alcohol as the predominant product.[7] It may also be used to prepare gel precursors for phenol-furfural aerogels.[8]