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ACROLEINICSC: 0090
2-Propenal
Acrylic aldehyde
2-Propen-1-al
March 2001
CAS #: 107-02-8
UN #: 1092
EC Number: 203-453-4

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Highly flammable.  Vapour/air mixtures are explosive. Risk of fire and explosion on contact with bases, acids or strong oxidizing agents.  NO open flames, NO sparks and NO smoking.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Use non-sparking handtools.  Use alcohol-resistant foam. Use powder. Use carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. Combat fire from a sheltered position. 

 STRICT HYGIENE! IN ALL CASES CONSULT A DOCTOR! 
  SYMPTOMS PREVENTION FIRST AID
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 CLASSIFICATION & 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. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 6.1; UN Subsidiary Risks: 3; UN Pack Group: I 

STORAGE
Fireproof. Separated from strong oxidants, strong bases, strong acids and food and feedstuffs. Cool. Ventilation along the floor. Store only if stabilized. 
PACKAGING
Unbreakable packaging.
Put breakable packaging into closed unbreakable container.
Do not transport with food and feedstuffs.
Marine pollutant. 
ACROLEIN ICSC: 0090
PHYSICAL & CHEMICAL INFORMATION

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. 

Formula: CH2=CHCHO
Molecular mass: 56.06
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  


EXPOSURE & HEALTH EFFECTS

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

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

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

Effects of long-term or repeated exposure
 


OCCUPATIONAL EXPOSURE LIMITS
TLV: 0.1 ppm as TWA; (ceiling value): (skin); A4 (not classifiable as a human carcinogen).
MAK: carcinogen category: 3B.
EU-OEL: 0.05 mg/m3, 0.02 ppm as TWA; 0.12 mg/m3, 0.05 ppm as STEL 

ENVIRONMENT
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. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: F, T+, N; R: 11-24/25-26-34-50; S: 23-26-28-36/37/39-45-61; Note: D 

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    See Also:
       Toxicological Abbreviations
       Acrolein (EHC 127, 1991)
       Acrolein (HSG 67, 1991)
       Acrolein (CICADS 43, 2002)
       Acrolein (IARC Summary & Evaluation, Volume 63, 1995)