Methylethylene
Propene
Methylethene
C3H6 / CH2CHCH3
Molecular mass: 42.1
(cylinder)
ICSC # 0559
CAS # 115-07-1
RTECS # UC6740000
UN # 1077
EC # 601-011-00-9
|
|
Types of Hazard/ Exposure
|
Acute Hazards/ Symptoms
|
Prevention
|
First Aid/
Fire Fighting
|
|
FIRE
|
Extremely flammable.
|
NO open flames, NO sparks, and NO smoking.
|
Shut off supply; if not possible and no risk to surroundings, let the fire burn itself out; in other cases extinguish with
powder, carbon dioxide.
|
|
Explosion
|
Gas/air mixtures are explosive.
|
Closed system, ventilation, explosion-proof electrical equipment and lighting.
Prevent build-up of electrostatic charges (e.g., by grounding) if in liquid state.
|
In case of fire: cool cylinder by spraying with water but avoid contact of the substance with water.
Combat fire from a sheltered position.
|
|
|
|
Exposure
|
|
|
|
|
•Inhalation
|
Drowsiness.
Suffocation (see Notes).
|
Ventilation.
|
Fresh air, rest.
Artificial respiration if indicated.
Refer for medical attention.
|
|
•Skin
|
ON CONTACT WITH LIQUID: FROSTBITE.
|
Cold-insulating gloves.
|
ON FROSTBITE: rinse with plenty of water, do NOT remove clothes.
Refer for medical attention.
|
|
•Eyes
|
See Skin.
|
Safety goggles
or face shield.
|
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.
|
|
|
Spillage Disposal
|
Storage
|
Packaging & Labelling
|
Evacuate danger area!
Consult an expert!
Ventilation.
Remove all ignition sources.
NEVER direct water jet on liquid.
Chemical protection suit including self-contained breathing apparatus.
|
Fireproof.
Cool.
|
F+ symbol
R: 12
S: 2-9-16-33
UN Hazard Class: 2.1
|
|
|
|
Important Data
|
Physical State; Appearance:
COLOURLESS COMPRESSED LIQUEFIED GAS.
Physical Dangers:
The gas is heavier than air
and may travel along the ground; distant ignition possible
and may accumulate in low ceiling spaces causing deficiency of oxygen.
As a result of flow, agitation, etc., electrostatic charges can be generated.
Chemical Dangers:
Reacts
violently with oxidants
causing fire and explosion hazard.
Occupational Exposure Limits:
TLV: Simple asphyxiant A4 (not classifiable as a human carcinogen); Intended change (ACGIH 2005).
MAK not established.
|
Routes of Exposure:
The substance can be absorbed into the body
by inhalation.
Inhalation Risk:
On loss of containment this gas can cause suffocation by lowering the oxygen content of the air in confined areas.
Effects of Short-Term Exposure:
Rapid evaporation of the liquid may cause frostbite.
The substance may cause effects on the central nervous system.
Exposure could cause lowering of consciousness.
See Notes.
Effects of Long-Term or Repeated Exposure:
|
|
Physical
Properties
|
Boiling point: -48°C
Melting point: -185°C
Relative density (water = 1): 0.5
Solubility in water: poor
Vapour pressure, kPa at 25°C: 1158
|
Relative vapour density (air = 1): 1.5
Flash point: Flammable Gas
Auto-ignition temperature: 460°C
Explosive limits, vol% in air: 2.4-10.3
Octanol/water partition coefficient as log Pow: 1.77
|
|
Environmental
Data
|
|
|
N O T E S
|
High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death.
Check oxygen content before entering area.
Turn leaking cylinder with the leak up to prevent escape of gas in liquid state.
Transport Emergency Card: TEC (R)-137.
NFPA Code: H1; F4; R1.
Card has been partially updated in August 2007: see Occupational Exposure Limits.
|
|
|
ADDITIONAL INFORMATION
|
|
|
|
ICSC: 0559
|
PROPYLENE
|
|
(C) IPCS, CEC, 1994
|
|
|
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.
|
|
|