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NIOSH

HEXACHLOROBUTADIENE

ICSC: 0896

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
August 10, 1997 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames.
Powder, water spray, foam, carbon dioxide.
EXPLOSION

In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE
AVOID ALL CONTACT!

•INHALATION Burning sensation. Cough. Sore throat. Symptoms may be delayed (see Notes). Coma.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Refer for medical attention.
•SKIN MAY BE ABSORBED! Pain. Redness. Blisters. Skin burns.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
•EYES Pain. Redness. Severe deep burns. Loss of vision.
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 take to a doctor.
•INGESTION Burning sensation. Abdominal pain. Shock or collapse.
Do not eat, drink, or smoke during work.
Rinse mouth. Do NOT induce vomiting. Give one or two glasses of water to drink. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

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).
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.
Do not transport with food and feedstuffs.
Severe marine pollutant.
UN Hazard Class: 6.1
UN Packing Group: III
ICSC: 0896 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

HEXACHLOROBUTADIENE

ICSC: 0896

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A

N

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D

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A

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


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.

PHYSICAL
PROPERTIES

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
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

ENVIRONMENTAL
DATA

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.

N O T E S

Transport Emergency Card: TEC (R)-613

NFPA Code: H2; F1; R1;
Card has been partially updated in November 2008: see Occupational Exposure Limits,

ADDITIONAL INFORMATION



ICSC: 0896 HEXACHLOROBUTADIENE
(C) IPCS, CEC, 1994
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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