1,1,2,3,4,4-Hexachloro-1,3-butadiene
Perchlorobutadiene
C4Cl6 / CCl2=CClCCl=CCl2
Molecular mass: 260.8
ICSC # 0896
CAS # 87-68-3
RTECS # EJ0700000
UN # 2279
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Combustible.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames.
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Powder, water spray, foam, carbon dioxide.
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Explosion
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In case of fire: keep drums, etc., cool by spraying with water.
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Exposure
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AVOID ALL CONTACT!
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•Inhalation
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Burning sensation.
Cough.
Sore throat.
Symptoms may be delayed (see Notes).
Coma.
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Ventilation, local exhaust, or breathing protection.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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MAY BE ABSORBED!
Pain.
Redness.
Blisters.
Skin burns.
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
Refer for medical attention.
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•Eyes
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Pain.
Redness.
Severe deep burns.
Loss of vision.
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Face shield,
or eye protection in combination with breathing protection.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Burning sensation.
Abdominal pain.
Shock or collapse.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Do NOT induce vomiting.
Give one or two glasses of water to drink.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Collect leaking and spilled liquid in sealable containers as far as possible.
Absorb remaining liquid in sand or inert absorbent and remove to safe place.
Do NOT let this chemical enter the environment.
(Extra personal protection: complete protective clothing including self-contained breathing apparatus).
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Separated from
food and feedstuffs.
Well closed.
Ventilation along the floor.
Store in an area without drain or sewer access.
Provision to contain effluent from fire extinguishing.
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Do not transport with food and feedstuffs.
Severe marine pollutant.
UN Hazard Class: 6.1
UN Packing Group: III
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Important Data
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Physical State; Appearance:
COLOURLESS LIQUID
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
Chemical Dangers:
The substance decomposes
on burning
producing toxic and corrosive fumes including hydrogen chloride and phosgene.
Attacks rubber and some forms of plastic.
Occupational Exposure Limits:
TLV (as TWA): 0.02 ppm; 0.21 mg/m3 A3 (skin) (ACGIH 1997).
MAK: skin absorption (H);
Carcinogen category: 3B
(DFG 2008).
OSHA PEL: none
NIOSH REL: Ca TWA 0.02 ppm (0.24 mg/m3) skin See Appendix A
NIOSH IDLH: Ca N.D. See: IDLH INDEX
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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 rather quickly on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The vapour
irritates
the eyes,
the skin and
the respiratory tract.
The liquid is corrosive.
The substance may cause effects on the kidneys.
Effects of Long-Term or Repeated Exposure:
Repeated or prolonged contact may cause skin sensitization.
May cause genetic damage in humans.
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Physical
Properties
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Boiling point: 212°C
Melting point: -18°C
Relative density (water = 1): 1.68
Solubility in water: none
Vapour pressure, Pa at 20°C: 20
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Relative vapour density (air = 1): 9.0
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Flash point: 90°C
Auto-ignition temperature: 610°C
Octanol/water partition coefficient as log Pow: 4.90
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Environmental
Data
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The substance is toxic to aquatic organisms.
In the food chain important to humans, bioaccumulation takes place, specifically in fish.
The substance may cause long-term effects in the aquatic environment.
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N O T E S
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Transport Emergency Card: TEC (R)-613
NFPA Code: H2; F1; R1;
Card has been partially updated in November 2008: see Occupational Exposure Limits,
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ADDITIONAL INFORMATION
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ICSC: 0896
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HEXACHLOROBUTADIENE
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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