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VINYLIDENE CHLORIDE
ICSC: 0083
Peer-Review Status: 11.04.2014 Validated
1,1-Dichloroethene
1,1-Dichloroethylene
VDC
CAS #: 75-35-4 RTECS #: KV9275000
UN #: 1303 (stabilized)
EC #: 602-025-00-8
EINECS #: 200-864-0
    Formula: C2H2Cl2 / H2C=CCl2
Molecular mass: 97.0

TYPES OF HAZARD
/ EXPOSURE
ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE-FIGHTING
FIRE Extremely flammable. Gives off irritating or toxic fumes (or gases) in a fire.  NO open flames, NO sparks and NO smoking.  Use water spray, powder, foam, carbon dioxide. 
EXPLOSION Vapour/air mixtures are explosive.  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. 
 
EXPOSURE   PREVENT GENERATION OF MISTS!   
Inhalation Cough. Dizziness. Drowsiness. Unconsciousness.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Refer immediately for medical attention. 
Skin   Protective gloves.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes Redness.  Wear safety spectacles or eye protection in combination with breathing protection.  Rinse with plenty of water (remove contact lenses if easily possible). 
Ingestion Abdominal pain. Further see Inhalation.  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Evacuate danger area! Remove all ignition sources. Consult an expert! Personal protection: filter respirator for organic vapours of low boiling point adapted to the airborne concentration of the substance. 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.  Airtight.
Unbreakable packaging.
Put breakable packaging into closed unbreakable container.
Marine pollutant. 
EC Classification
Symbol: F+, Xn; R: 12-20-40; S: (2)-7-16-29-36/37-46; Note: D 
UN Classification
UN Hazard Class: 3; UN Pack Group: I 
GHS Classification
Signal: Danger
Extremely flammable liquid and vapour
Toxic if swallowed
May be harmful if inhaled
May cause drowsiness or dizziness
May cause damage to liver and kidneys through prolonged or repeated exposure
Harmful to aquatic life 
flam;flameskull;toxiccancer;health haz

EMERGENCY RESPONSE SAFE STORAGE
NFPA Code: H2; F4; R2.  Store only if stabilized. Fireproof. Keep in the dark. Cool. Separated from incompatible materials. See Chemical Dangers. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing. 

IMPORTANT DATA
Physical State; Appearance
VOLATILE 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 can readily form explosive peroxides. The substance readily polymerizes due to heating or under the influence of oxygen, sunlight, copper or aluminium. This generates fire or explosion hazard. May explode on heating or on contact with flames. Decomposes on burning. This produces toxic and corrosive fumes of hydrogen chloride and phosgene. Reacts violently with oxidants. 

Occupational exposure limits
TLV: 5ppm as TWA; A4 (not classifiable as a human carcinogen); (ACGIH 2014).
MAK: 2 ppm, 8.0 mg/m³; Carcinogen category: 3B; Peak limitation category: II(2); Pregnancy risk group: C; (DFG 2013). 

Routes of exposure
The substance can be absorbed into the body by inhalation 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
The substance is mildly irritating to the eyes and upper respiratory tract. Exposure far above the OEL could cause lowering of consciousness. 

Effects of long-term or repeated exposure
The substance may have effects on the kidneys and liver. This may result in liver function impairment and kidney impairment. Tumours have been detected in experimental animals but may not be relevant to humans. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 32°C
Melting point: -122°C
Relative density (water = 1): 1.2
Solubility in water, g/100ml at 25°C: 0.25 (very poor)
Vapour pressure, kPa at 20°C: 66.5
Relative vapour density (air = 1): 3.3
Relative density of the vapour/air-mixture at 20°C (air = 1): 2.5
Flash point: -25°C c.c.
Auto-ignition temperature: 530°C
Explosive limits, vol% in air: 5.6-16
Octanol/water partition coefficient as log Pow: 2.41  
The substance is harmful to aquatic organisms. 

NOTES
Depending on the degree of exposure, periodic medical examination is suggested.
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 use in the vicinity of a fire or a hot surface, or during welding. 

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
       Vinylidene chloride (EHC 100, 1990)
       Vinylidene chloride (HSG 36, 1989)
       Vinylidene Chloride  (IARC Summary & Evaluation, Volume 71, 1999)