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VINYL ACETATE (MONOMER)
ICSC: 0347
Peer-Review Status: 11.04.2014 Validated
VAM
Acetic acid ethenyl ester
1-Acetoxyethylene
Acetic acid vinyl ester
CAS #: 108-05-4 RTECS #: AK0875000
UN #: 1301
EC #: 607-023-00-0
EINECS #: 203-545-4
    Formula: C4H6O2 / CH3COOCH=CH2
Molecular mass: 86.1

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, foam, powder, carbon dioxide, fine water spray. 
EXPLOSION Vapour/air mixtures are explosive. Heating will cause rise in pressure with risk of bursting.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling.  In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE   AVOID ALL CONTACT!   
Inhalation Sore throat. Cough. Shortness of breath.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Half-upright position. Refer for medical attention. 
Skin Redness. Dry skin.  Protective gloves.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Seek medical attention if you feel unwell. 
Eyes Redness.  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   Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Remove all ignition sources. Evacuate danger area! Consult an expert! Personal protection: self-contained breathing apparatus. Do NOT wash away into sewer. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.   
EC Classification
Symbol: F; R: 11; S: (2)-16-23-29-33 
UN Classification
UN Hazard Class: 3; UN Pack Group: II 
GHS Classification
Signal: Danger
Highly flammable liquid and vapour
Toxic if inhaled
May be harmful if swallowed or in contact with skin
Suspected of causing cancer
May cause respiratory irritation
Harmful to aquatic life 
flam;flameskull;toxiccancer;health haz

EMERGENCY RESPONSE SAFE STORAGE
NFPA Code: H2; F3; R2.  Fireproof. Separated from strong oxidants, acids and bases. Keep in the dark. Well closed. Store only if stabilized. Store in an area without drain or sewer access. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC 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 polymerizes under the influence of heat and light. This generates fire or explosion hazard. Reacts violently with strong oxidants, acids and bases. 

Occupational exposure limits
TLV: 10 ppm as TWA; 15 ppm as STEL; A3 (confirmed animal carcinogen with unknown relevance to humans); (ACGIH 2014).
MAK: Carcinogen category: 3A; (DFG 2013). 

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

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

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

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dryness and cracking. This substance is possibly carcinogenic to humans. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 72.7°C
Melting point: -93.2°C
Relative density (water = 1): 0.93
Solubility in water, g/100ml at 20°C: 2 (poor)
Vapour pressure, kPa at 20°C: 11.7
Relative vapour density (air = 1): 3.0
Relative density of the vapour/air-mixture at 1.2°C (air = 1):
Flash point: -8°C c.c.
Auto-ignition temperature: 385°C
Explosive limits, vol% in air: 2.6-13.4
Octanol/water partition coefficient as log Pow: 0.73  
The substance is harmful to aquatic organisms. 

NOTES
An added stabilizer or inhibitor can influence the toxicological properties of this substance; consult an expert.
The stabilizing quality of hydroquinone is limited to 60 days.
For prolonged storage, another inhibitor, such as diphenylamine, is recommended.
Do NOT take working clothes home. 

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