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FURFURAL
ICSC: 0276
Peer-Review Status: 08.06.2012 Validated
2-Furancarboxyaldehyde
2-Furaldehyde
2-Furylmethanal 
CAS #: 98-01-1 RTECS #: LT7000000
UN #: 1199
EC #: 605-010-00-4
EINECS #: 202-627-7
    Formula: C5H4O2 / C4H3OCHO
Molecular mass: 96.1

TYPES OF HAZARD
/ EXPOSURE
ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE-FIGHTING
FIRE Flammable.  NO open flames, NO sparks and NO smoking.  Use water spray, powder, alcohol-resistant foam, carbon dioxide. 
EXPLOSION Above 60°C explosive vapour/air mixtures may be formed.  Above 60°C use a closed system, ventilation and explosion-proof electrical equipment.  In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE   PREVENT GENERATION OF MISTS!   
Inhalation Cough. Sore throat. Headache. Dizziness. Weakness. Shortness of breath.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. See Notes. 
Skin Dry skin. Redness.  Protective gloves.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Seek medical attention if you feel unwell. 
Eyes Redness. Pain.  Wear face shield or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Aspiration hazard!  Do not eat, drink, or smoke during work.  Rinse mouth. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: filter respirator for organic gases and particulates adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.  Do not transport with food and feedstuffs. 
EC Classification
Symbol: T; R: 21-23/25-36/37/38-40; S: (1/2)-26-36/37-45 
UN Classification
UN Hazard Class: 6.1; UN Subsidiary Risks: 3; UN Pack Group: II 
GHS Classification
Signal: Danger
Flammable liquid and vapour
Toxic if swallowed
Fatal if inhaled
Causes mild skin irritation
Causes eye irritation
May cause respiratory irritation
Suspected of causing cancer
May cause damage to liver through prolonged or repeated exposure if swallowed
May be harmful if swallowed and enters airways
Harmful to aquatic life 
flam;flameskull;toxiccancer;health haz

EMERGENCY RESPONSE SAFE STORAGE
NFPA Code: H3; F2; R1.  Separated from strong bases, strong acids, strong oxidants and food and feedstuffs. Keep in the dark. Well closed. Ventilation along the floor. Store in an area without drain or sewer access. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS-TO-PALE YELLOW OILY LIQUID WITH CHARACTERISTIC ODOUR. TURNS RED-BROWN ON EXPOSURE TO AIR AND LIGHT. 

Physical dangers
 

Chemical dangers
The substance polymerizes under the influence of acids or bases. This generates fire or explosion hazard. Reacts with oxidants. Attacks some forms of plastic. 

Occupational exposure limits
TLV: 2ppm as TWA; (skin); A3 (confirmed animal carcinogen with unknown relevance to humans); BEI issued; (ACGIH 2011).
MAK: Carcinogen category: 3B; Skin absorption (H); (DFG 2011). 

Routes of exposure
The substance can be absorbed into the body by inhalation, through the skin and by ingestion. 

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. 

Effects of short-term exposure
The substance is mildly irritating to the skin. The substance is irritating to the eyes and respiratory tract. If swallowed the substance may cause vomiting and could result in aspiration pneumonitis. 

Effects of long-term or repeated exposure
The substance defats the skin, which may cause dryness or cracking. The substance may have effects on the liver. Tumours have been detected in experimental animals but may not be relevant to humans. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 162°C
Melting point: -36.5°C
Relative density (water = 1): 1.16
Solubility in water, g/100ml at 20°C: 8.3
Vapour pressure, kPa at 20°C: 0.15
Relative vapour density (air = 1): 3.3
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Flash point: 60°C c.c.
Auto-ignition temperature: 315°C
Explosive limits, vol% in air: 2.1-19.3
Octanol/water partition coefficient as log Pow: 0.46
Viscosity: 1.28 mm²/s at 25°C 
The substance is harmful to aquatic organisms. 

NOTES
Refer for medical attention if breathing difficulties and/or fever develop. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations
       Furfural (WHO Food Additives Series 30)
       Furfural (WHO Food Additives Series 42)
       Furfural (WHO Food Additives Series 46)
       FURFURAL (JECFA Evaluation)
       Furfural (IARC Summary & Evaluation, Volume 63, 1995)