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ACROLEIN
ICSC: 0090
Peer-Review Status: 13.03.2001 Validated
2-Propenal
Acrylic aldehyde
2-Propen-1-al 
CAS #: 107-02-8 RTECS #: AS1050000
UN #: 1092
EC #: 605-008-00-3
EINECS #: 203-453-4
    Formula: CH2=CHCHO
Molecular mass: 56.06

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Highly flammable.  NO open flames, NO sparks and NO smoking.  Use alcohol-resistant foam. Use powder. Use carbon dioxide. 
EXPLOSION Vapour/air mixtures are explosive. Risk of fire and explosion on contact with bases, acids or strong oxidizing agents.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Use non-sparking handtools.  In case of fire: keep drums, etc., cool by spraying with water. Combat fire from a sheltered position. 
 
EXPOSURE   STRICT HYGIENE!  IN ALL CASES CONSULT A DOCTOR! 
Inhalation Burning sensation. Cough. Laboured breathing. Shortness of breath. Sore throat. Nausea. Symptoms may be delayed. See Notes.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Half-upright position. Refer for medical attention. 
Skin Redness. Pain. Blisters. Skin burns.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
Eyes Redness. Pain. Severe deep burns.  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 Burning sensation in the throat and chest. Convulsions. Nausea.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Do NOT induce vomiting. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Personal protection: chemical protection suit including self-contained breathing apparatus. Remove all ignition sources. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in covered containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.  Unbreakable packaging.
Put breakable packaging into closed unbreakable container.
Do not transport with food and feedstuffs.
Marine pollutant. 
EC Classification
Symbol: F, T+, N; R: 11-24/25-26-34-50; S: 23-26-28-36/37/39-45-61; Note: D 
UN Classification
UN Hazard Class: 6.1; UN Subsidiary Risks: 3; UN Pack Group: I 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-61S1092.
NFPA Code: H3; F3; R3. 
Fireproof. Separated from strong oxidants, strong bases, strong acids and food and feedstuffs. Cool. Ventilation along the floor. Store only if stabilized. 

IMPORTANT DATA
Physical State; Appearance
YELLOW-TO-COLOURLESS LIQUID WITH PUNGENT ODOUR. 

Physical dangers
The vapour is heavier than air and may travel along the ground; distant ignition possible. 

Chemical dangers
The substance can form explosive peroxides. The substance may polymerize. This generates fire or explosion hazard. Decomposes on heating. Upon heating, toxic fumes are formed. This produces toxic fumes. Reacts with strong acids, strong bases and strong oxidants. This generates fire and explosion hazard. 

Occupational exposure limits
TLV: 0.1ppm (ceiling value); (skin); A4 (not classifiable as a human carcinogen); (ACGIH 2004).
MAK: Carcinogen category: 3B; (DFG 2004). 

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

Inhalation risk
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C. 

Effects of short-term exposure
Lachrymation. The substance is severely irritating to the eyes, skin and respiratory tract. Inhalation of of high concentrations may cause lung oedema. See Notes. The effects may be delayed. Medical observation is indicated. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 53°C
Melting point: -88°C
Relative density (water = 1): 0.8
Solubility in water, g/100ml at 20°C: 20
Vapour pressure, kPa at 20°C: 29
Relative vapour density (air = 1): 1.9
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.2
Flash point: -26°C c.c.
Auto-ignition temperature: 234°C
Explosive limits, vol% in air: 2.8-31
Octanol/water partition coefficient as log Pow: 0.9  
The substance is very toxic to aquatic organisms. 

NOTES
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort.
Rest and medical observation are therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered.
An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert.
The odour warning when the exposure limit value is exceeded is insufficient.
The occupational exposure limit value should not be exceeded during any part of the working exposure.
Check for peroxides prior to distillation; render harmless if positive.
Card has been partly updated in October 2004 and April 2005.
See section Occupational Exposure Limits, Emergency response. 

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
       Acrolein (EHC 127, 1991)
       Acrolein (HSG 67, 1991)
       Acrolein (CICADS 43, 2002)
       Acrolein (IARC Summary & Evaluation, Volume 63, 1995)