Home Categories Organic Chemistry Furfural
A4275912

Furfural , ACS,99% , 98-01-1

Synonym(s):
2-Furaldehyde;2-Furancarbaldehyde;Furan-2-carboxaldehyde;Furfural

CAS NO.:98-01-1

Empirical Formula: C5H4O2

Molecular Weight: 96.08

MDL number: MFCD00003229

EINECS: 202-627-7

Update time: 2022-07-08

PRODUCT Properties

Melting point: -36 °C (lit.)
Boiling point: 162 °C (lit.)
Density  1.16 g/mL at 25 °C (lit.)
vapor density  3.31 (vs air)
vapor pressure  13.5 mm Hg ( 55 °C)
refractive index  n20/D 1.527
FEMA  2489 | FURFURAL
Flash point: 137 °F
storage temp.  Store below +30°C.
solubility  95% ethanol: soluble1ML/mL, clear
form  Liquid
color  very deep brown
Odor at 1.00 % in dipropylene glycol. sweet woody almond fragrant baked bread
PH >=3.0 (50g/l, 25℃)
explosive limit 2.1-19.3%(V)
Odor Type bready
Water Solubility  8.3 g/100 mL
FreezingPoint  -36.5℃
Sensitive  Air Sensitive
JECFA Number 450
Merck  14,4304
BRN  105755
Henry's Law Constant 1.52(x 10-6 atm?m3/mol) at 20 °C (approximate - calculated from water solubility and vapor pressure)
Exposure limits NIOSH REL: IDLH 100 ppm; OSHA PEL: TWA 5 ppm (20 mg/m3); ACGIH TLV: TWA 2 ppm (adopted).
Dielectric constant 41.9(20℃)
Stability: Stable. Substances to be avoided include strong bases, strong oxidizing agents and strong acids. Flammable.
LogP 0.41

Description and Uses

Furfural is a colourless to amber-like oily liquid with an almond-like odour. On exposure to light and air, it turns reddish brown. Furfural is used in making chemicals, as a solvent in petroleum refining, a fungicide, and a weed killer. It is incompatible with strong acids, oxidisers, and strong alkalis. It undergoes polymerisation on contact with strong acids or strong alkalis. Furfural is produced commercially by the acid hydrolysis of pentosan polysaccharides from non-food residues of food crops and wood wastes. It is used widely as a solvent in petroleum refining, in the production of phenolic resins, and in a variety of other applications. Human exposure to furfural occurs during its production and use, as a result of its natural occurrence in many foods and from the combustion of coal and wood.

Commercially, furfural is produced through hydrolysis of pentosan in agricultural byproducts (e.g., crop wastes). It has a diverse applications which include as a solvent in various manufacturing industries (e.g., petroleum and automotive products), accelerant for vulcanization of rubber, raw material for manufacturing furan derivatives (e.g., tetrahydrofurfuryl alcohol) and synthetic resins, wetting agent, flavoring ingredient for foods (e.g., roasted coffee), fragrance in consumer and personal care products (e.g., fragrance cream, bath products, toiletries), and pesticides for controlling unwanted microorganisms, fungi, weeds, insects, and nematodes. The application methods for pesticidal use include drip irritation, spray boom, sprinkler, and low-pressure back-pack spray.

Safety

Symbol(GHS) 
GHS02,GHS06,GHS08
Signal word  Danger
Hazard statements  H226-H301-H312-H315-H319-H330-H335-H351-H412
Precautionary statements  P210-P273-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338
Hazard Codes  T,Xi
Risk Statements  21-23/25-36/37-40-36/37/38
Safety Statements  26-36/37/39-45-1/2-36/37
RIDADR  UN 1199 6.1/PG 2
WGK Germany  2
RTECS  LT7000000
1-8-10
Autoignition Temperature 599 °F &_& 599 °F
Hazard Note  Irritant
TSCA  Yes
HS Code  2932 12 00
HazardClass  6.1
PackingGroup  II
Toxicity LD50 orally in rats: 127 mg/kg (Jenner)
IDLA 100 ppm

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