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HEXACHLOROETHANE ICSC: 0051
Date of Peer Review: April 1993

Perchloroethane
Carbon hexachloride
CAS # 67-72-1 C2Cl6 / Cl3CCCl3
RTECS # KI4025000 Molecular mass: 236.7
UN #
EC #
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.

In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION

In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE
PREVENT DISPERSION OF DUST! PREVENT GENERATION OF MISTS!

Inhalation
Local exhaust or breathing protection.
Fresh air, rest. Refer for medical attention.
Skin MAY BE ABSORBED!
Protective gloves.
Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
Eyes
Safety goggles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion
Do not eat, drink, or smoke during work.
Rinse mouth. Give a slurry of activated charcoal in water to drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into containers. Carefully collect remainder, then remove to safe place.
EU Classification
UN Classification

EMERGENCY RESPONSE SAFE STORAGE

Separated from metals, food and feedstuffs. See Chemical Dangers.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2004

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HEXACHLOROETHANE ICSC: 0051
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS CRYSTALS, WITH CHARACTERISTIC ODOUR.

CHEMICAL DANGERS:
The substance decomposes on heating above 300C producing toxic and corrosive fumes, phosgene (see ICSC 0007) and hydrogen chloride (see ICSC 0163). Reacts violently with zinc, aluminium powder and sodium. Attacks iron in the presence of moisture.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 1 ppm (skin); A3 (confirmed animal carcinogen with unknown relevance to humans); (ACGIH 2004).
MAK: 1 ppm, 9.8 mg/m; Peak limitation category: II(2); (DFG 2004).
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 very quickly on evaporation of this substance at 20C.

EFFECTS OF SHORT-TERM EXPOSURE:
Exposure may result in unconsciousness.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the liver and kidneys. Exposure at far above the OEL may have effects on the central nervous system, inducing tremors and ataxia.
PHYSICAL PROPERTIES
Sublimation point: 183-185C
Relative density (water = 1): 2.1
Solubility in water: none
Vapour pressure, Pa at 20C: 53
Relative vapour density (air = 1): 8.2
Relative density of the vapour/air-mixture at 20C (air = 1): 1.0
Octanol/water partition coefficient as log Pow: 3.9
ENVIRONMENTAL DATA
This substance may be hazardous in the environment; special attention should be given to fish.
NOTES
Use of alcoholic beverages enhances the harmful effect. 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.
Card has been partly updated in April 2005. See section Occupational Exposure Limits.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 2004