Dichloroethyne
C2Cl2
Molecular mass: 94.9
ICSC # 1426
CAS # 7572-29-4
RTECS # AP1080000
EC # 602-069-00-8
Pi, Study (1st batch of chemical part)
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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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Explosive.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames, NO sparks, and NO smoking.
NO contact with acid(s) or oxidants.
NO contact with hot surfaces.
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Water spray,
foam,
carbon dioxide,
NO dry chemical.
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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 expose to friction or shock.
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Combat fire from a sheltered position.
In case of fire: keep cylinder cool by spraying with water.
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Exposure
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STRICT HYGIENE!
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•Inhalation
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Headache.
Nausea.
Vomiting.
Sore throat.
Dizziness.
Facial paralysis, numbness and
tremor.
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Closed system and ventilation.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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Protective gloves.
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Rinse and then wash skin with water and soap.
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•Eyes
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Redness.
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Safety spectacles,
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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Abdominal pain.
(Further see Inhalation).
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Do not eat, drink, or smoke during work.
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Refer for medical attention.
Rinse mouth.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Evacuate danger area!
Consult an expert!
Remove all ignition sources.
Do NOT wash away into sewer.
(Extra personal protection: filter respirator for organic vapours of low boiling compounds.)
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Fireproof.
Separated from
strong acids
and
oxidants.
Cool.
Well closed.
Keep in a well-ventilated room.
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Airtight.
E symbol
Xn symbol
R: 2-40-48/20
S: 2-36/37
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Important Data
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Physical State; Appearance:
OILY
LIQUID
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
Chemical Dangers:
May decompose explosively on shock, friction, or concussion.
May explode on heating.
The substance decomposes
on heating
producing
toxic fumes
including
chlorine
.
Reacts
violently with
oxidants
and
with
acids
.
Occupational Exposure Limits:
TLV: (Ceiling value) 0.1 ppm A3 (ACGIH 2001).
MAK: Carcinogen category: 2 (DFG 2000).
OSHA PEL: none
NIOSH REL: Ca C 0.1 ppm (0.4 mg/m3) 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.
Inhalation Risk:
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The substance may cause effects on the
nervous system
and
kidneys
, resulting in
tissue lesions
,
impaired functions
and
kidney impairment
.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point: 32°C
(explodes)
Melting point: -66°C
Relative density (water = 1): 1.2
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Solubility in water: none
Relative vapour density (air = 1): 3.3
Flash point: see Notes
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Environmental
Data
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N O T E S
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The substance is combustible but no flash point is available in literature.
Combustion in a confined space may turn into detonation.
The occupational exposure limit value should not be exceeded during any part of the working exposure.
The substance is not commercially available, but it is a decomposition product of trichlorethylene, trichloroethane and it is also a by-product of vinylidene chloride.
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ADDITIONAL INFORMATION
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ICSC: 1426
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DICHLOROACETYLENE
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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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