Ethane, 1,1-dichloro-
Ethylidene chloride
CH3CHCl2
Molecular mass: 99.0
ICSC # 0249
CAS # 75-34-3
RTECS # KI0175000
UN # 2362
EC # 602-011-00-1
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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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Highly flammable.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames, NO sparks, and NO smoking.
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Water spray, foam, powder, carbon dioxide.
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Explosion
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Vapour/air mixtures are explosive.
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Closed system, ventilation, explosion-proof electrical equipment and lighting.
Do NOT use compressed air for filling, discharging, or handling.
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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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PREVENT GENERATION OF MISTS!
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•Inhalation
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Dizziness.
Drowsiness.
Dullness.
Nausea.
Unconsciousness.
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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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Dry skin.
Roughness.
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Protective gloves
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
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•Eyes
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Redness.
Pain.
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Safety spectacles.
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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.
(Further see Inhalation).
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Do not eat, drink, or smoke during work.
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Rinse mouth.
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 liquid in sealable containers.
Absorb remaining liquid in sand or inert absorbent and remove to safe place.
Do NOT wash away into sewer.
Personal protection: self-contained breathing apparatus.
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Fireproof.
Separated from:
see Chemical Dangers.
Cool.
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Marine pollutant.
F symbol
Xn symbol
R: 11-22-36/37-52/53
S: 2-16-23-61
UN Hazard Class: 3
UN Packing Group: II
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Important Data
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Physical State; Appearance:
COLOURLESS LIQUID
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
The vapour is heavier than air
and may travel along the ground; distant ignition possible.
Chemical Dangers:
The substance decomposes
on heating
and
on burning
producing
toxic and corrosive fumes
including
phosgene
(see ICSC 0007)
and
hydrogen chloride
(see ICSC 0163).
Reacts violently withstrong oxidants,alkali metalsand earth-alkali metals,powdered metals,
causing fire and explosion hazard.
Attacks aluminium, iron and polyethylene.
Contact with strong caustic will cause formation of flammable and toxic acetaldehyde gas.
Occupational Exposure Limits:
TLV: 100 ppm as TWA; A4 (not classifiable as a human carcinogen); (ACGIH 2004).
MAK: 100 ppm, 410 mg/m3
Peak limitation category: II(2); Pregnancy risk group: C;
(DFG 2006).
OSHA PEL: TWA 100 ppm (400 mg/m3)
NIOSH REL: TWA 100 ppm (400 mg/m3) See Appendix C (Chloroethanes)
NIOSH IDLH: 3000 ppm See: 75343
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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 rather quickly on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The substance may cause effects on the central nervous system.
Exposure at high levels may result in unconsciousness.
Effects of Long-Term or Repeated Exposure:
The liquid defats the skin.
The substance may have effects on the kidneys and liver.
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Physical
Properties
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Boiling point: 57°C
Melting point: -98°C
Relative density (water = 1): 1.2
Solubility in water, g/100 ml at 20°C: 0.6
Vapour pressure, kPa at 20°C: 24
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Relative vapour density (air = 1): 3.4
Flash point: -6°C c.c.
Auto-ignition temperature: 458°C
Explosive limits, vol% in air: 5.6-11.4
Octanol/water partition coefficient as log Pow: 1.8
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Environmental
Data
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N O T E S
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Do NOT use in the vicinity of a fire or a hot surface, or during welding.
Card has been partly updated in October 2005: see sections Occupational Exposure Limits, EU classification, Emergency Response.
Card has been partly updated in October 2006: see sections Occupational Exposure Limits.
Transport Emergency Card: TEC (R)-30GF1-I+II
NFPA Code: H 2; F 3; R 0;
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ADDITIONAL INFORMATION
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ICSC: 0249
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1,1-DICHLOROETHANE
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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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