Ethane, 1,1-dichloro-1-fluoro
Dichlorofluoroethane
HCFC-141b
C2H3Cl2F/CH3CCl2F
Molecular mass: 117
ICSC # 1712
CAS # 1717-00-6
RTECS # KI0997000
EC # 602-084-00-X
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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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Gives off irritating or toxic fumes (or gases) in a fire.
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NO contact with hot surfaces.
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Water spray, foam, powder, carbon dioxide
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Explosion
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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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•Inhalation
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Drowsiness.
Confusion.
Unconsciousness.
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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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Redness.
Pain.
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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.
Pain.
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Safety goggles
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Rinse with plenty of water (remove contact lenses if easily possible).
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•Ingestion
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Do NOT induce vomiting.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Personal protection: self-contained breathing apparatus.
Ventilation.
Collect leaking liquid in sealable containers.
Absorb remaining liquid in sand or inert absorbent and remove to safe place.
Carefully collect remainder,
then remove to safe place.
Do NOT let this chemical enter the environment.
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Separated from
strong acids.
Cool.
Keep in a well-ventilated room.
Store in an area without drain or sewer access.
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N symbol
R: 52/53-59
S: 59-61
Signal: Warning
Excl mark
Causes eye irritation
May cause drowsiness or dizziness
Harmful to aquatic life
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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 accumulate in lowered spaces causing a deficiency of oxygen.
Chemical Dangers:
The substance decomposes
on contact with
hot surfaces or flames
producing
hydrogen chloride
,
hydrogen fluoride
and
phosgene
.
Reacts
with
strong acids
.
Occupational Exposure Limits:
TLV not established.
MAK not established.
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation
.
Inhalation Risk:
On loss of containment this liquid evaporates very quickly displacing the air and causing a serious risk of suffocation when in confined areas.
Effects of Short-Term Exposure:
The substance
is mildly irritating to
the eyes
.
The substance may cause effects on the
central nervous system
and
cardiovascular system
, resulting in
lowering of consciousness
and
cardiac disorders
.
Suffocation.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point: 32°C
Melting point: -103.5°C
Density: 1.24
g/cm3
Solubility in water: 0.4 g/100 ml
at 20°C
Vapour pressure, kPa at 25°C: 76.3
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Relative vapour density (air = 1): 4.0
Relative density of the vapour/air-mixture at 20°C (air = 1): 3.3 (calculated)
Auto-ignition temperature: 530- 550°C
Explosive limits, vol% in air: 5.6-17.7
Octanol/water partition coefficient as log Pow: 2.3
Viscosity, mm˛/s at 25 °C: 0.33
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Environmental
Data
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The substance is harmful to aquatic organisms.
This substance may be hazardous in 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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High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death.
Check oxygen content before entering area.
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ADDITIONAL INFORMATION
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ICSC: 1712
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1,1-DICHLORO-1-FLUOROETHANE
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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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