International Chemical Safety Cards
1,1,2,2-TETRACHLOROETHANE
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ICSC: 0332
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PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID
, WITH CHARACTERISTIC ODOUR.
PHYSICAL DANGERS:
The vapour is heavier than air.
CHEMICAL DANGERS:
The substance decomposes
on burning
under influence of air, moisture and UV light,
producing toxic and corrosive gases including hydrogen chloride and phosgene.
Reacts violently with alkali metals, strong bases and many powdered metals producing toxic and explosive gases.
Attacks plastic and rubber.
OCCUPATIONAL EXPOSURE LIMITS (OELs):
TLV: 1 ppm; 6.9 mg/m3 (as TWA) (skin) (ACGIH 1994-1995).
MAK: 1 ppm; 7 mg/m3; skin, B (1992).
OSHA PEL: TWA 5 ppm (35 mg/m3) skin
NIOSH REL: Ca TWA 1 ppm (7 mg/m3) skin See Appendix A See Appendix C (Chloroethanes)
NIOSH IDLH: Potential occupational carcinogen 100 ppm
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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 substance
irritates the eyes and the respiratory tract.
The substance may cause effects on the central nervous system, kidneys and liver
, resulting in depression of the central nervous system, kidney impairment and liver impairment.
Exposure may result in unconsciousness.
Exposure may result in death.
EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The liquid defats the skin.
The substance may have effects on the central nervous system and liver
, resulting in impaired functions.
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PHYSICAL PROPERTIES
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Boiling point: 146°C
Melting point: -44°C
Relative density (water = 1): 1.6
Solubility in water, g/100 ml at 20°C: 0.29
Vapour pressure, kPa at 20°C: 0.647
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Vapour pressure, Pa at 25°C: 780
Relative vapour density (air = 1): 5.8
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.031
Octanol/water partition coefficient as log Pow: 2.39
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ENVIRONMENTAL DATA
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The substance is toxic to aquatic organisms.
This substance may be hazardous to the environment; special attention should be given to its impact on the ozone layer.
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N O T E S
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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.
Transport Emergency Card: TEC (R)-719
NFPA Code: H3; F0; R1
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ADDITIONAL INFORMATION
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ICSC: 0332
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1,1,2,2-TETRACHLOROETHANE
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© IPCS, CEC, 1993
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