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METHYL ACRYLATEICSC: 0625
November 2003
CAS #: 96-33-3Acrylic acid, methyl ester
Methyl-2-propenoate
2-Propenoic acid, methyl ester
UN #: 1919
EINECS #: 202-500-6

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Highly flammable.  Vapour/air mixtures are explosive.  NO open flames, NO sparks and NO smoking.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling.  Use foam, powder, carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. 

 AVOID ALL CONTACT!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough. Cough. Shortness of breath. Sore throat.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Redness. Pain.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
Eyes Redness. Pain.  Wear safety goggles 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 Abdominal pain. Diarrhoea. Nausea. Vomiting.  Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. Do NOT induce vomiting. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Remove all ignition sources. 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. Do NOT let this chemical enter the environment. Personal protection: chemical protection suit and filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 3; UN Pack Group: II 

STORAGE
Fireproof. See Chemical Dangers. Cooled. Keep in the dark. Well closed. Store only if stabilized. 
PACKAGING
Unbreakable packaging.
Put breakable packaging into closed unbreakable container. 
METHYL ACRYLATE ICSC: 0625
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH PUNGENT ODOUR. 

Physical dangers
The vapour is heavier than air and may travel along the ground; distant ignition possible. Vapours are uninhibited and may polymerize, causing blockage of vents. 

Chemical dangers
The substance may spontaneously polymerize due to warming, under the influence of light and on contact with peroxides. Reacts violently with strong acids, strong bases and strong oxidants. This generates fire and explosion hazard. 

Formula: C4H6O2 / CH2=CHCOOCH3
Molecular mass: 86.1
Boiling point: 80.5°C
Melting point: -76.5°C
Relative density (water = 1): 0.95
Solubility in water, g/100ml at 20°C: 6
Vapour pressure, kPa at 20°C: 9.1
Relative vapour density (air = 1): 3.0
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.18
Flash point: -2.8°C c.c.
Auto-ignition temperature: 468°C
Explosive limits, vol% in air: 2.8-25
Octanol/water partition coefficient as log Pow: 0.8  


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is severely irritating to the eyes. The substance is irritating to the skin and respiratory tract. 

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
Repeated or prolonged contact may cause skin sensitization. 


Occupational exposure limits
TLV: 2 ppm as TWA; (skin); (SEN); A4 (not classifiable as a human carcinogen).
MAK: 7.1 mg/m3, 2 ppm; peak limitation category: I(2); skin absorption (H); sensitization of skin (SH); pregnancy risk group: C.
EU-OEL: 18 mg/m3, 5 ppm as TWA; 36 mg/m3, 10 ppm as STEL 

ENVIRONMENT
The substance is toxic to aquatic organisms. 

NOTES
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.
Do NOT take working clothes home. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: F, Xn; R: 11-20/21/22-36/37/38-43; S: (2)-9-25-26-33-36/37-43; Note: D 

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    See Also:
       Toxicological Abbreviations
       Methyl Acrylate  (IARC Summary & Evaluation, Volume 39, 1986)
       Methyl Acrylate  (IARC Summary & Evaluation, Volume 71, 1999)