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185914

Furfural

99%, liquid

Synonym(s):

2-Furaldehyde, Furan-2-carboxaldehyde

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About This Item

Linear Formula:
C4H3OCHO
CAS Number:
98-01-1
Molecular Weight:
96.08
NACRES:
NA.21
PubChem Substance ID:
57647750
eCl@ss:
39150703
UNSPSC Code:
12352100
EC Number:
202-627-7
MDL number:
MFCD00003229
Beilstein/REAXYS Number:
105755
Assay:
99%
Form:
liquid
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Product Name

Furfural, 99%

vapor density

3.31 (vs air)

Quality Segment

vapor pressure

13.5 mmHg ( 55 °C)

assay

99%

form

liquid

autoignition temp.

599 °F

expl. lim.

19.3 %

refractive index

n20/D 1.525 (lit.)

bp

162 °C (lit.)

mp

−36 °C (lit.)

density

1.16 g/mL at 25 °C (lit.)

functional group

aldehyde

SMILES string

[H]C(=O)c1ccco1

InChI

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

InChI key

HYBBIBNJHNGZAN-UHFFFAOYSA-N

General description

Furfural is a heterocyclic aldehyde. It can be produced from agricultural raw materials containing pentosans and lignocellulosic feedstock. 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:
  • methylfuran
  • furfuryl alcohol
  • tetrahydrofurfuryl alcohol
  • tetrahydrofuran
  • methyltetrahydrofuran
  • dihydropyran
  • furoic acid

Application

Furfural undergoes hydrogenation in the vapor-phase over copper-containing catalysts to form furfuryl alcohol as the predominant product. It may also be used to prepare gel precursors for phenol-furfural aerogels.
Furfural has been employed as a standard for the HPLC quantification of furfural in the autohydrolysate liquor obtained from microwave-irradiated maize bran. It may be used in the preparation of γ-valerolactone (GVL) and biofuel 2-methylfuran (51% yield).

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Signal Word

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Aquatic Chronic 3 - Carc. 2 - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class

3 - Flammable liquids

WGK

WGK 2

Flash Point (°F)

136.4 °F - closed cup

Flash Point (°C)

58 °C - closed cup

PPE (personal protective equipment)

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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