1,2-Butene oxide
1,2-Epoxybutane
Ethyloxirane
C4H8O
Molecular mass: 72.12
ICSC # 0636
CAS # 106-88-7
RTECS # EK3675000
UN # 3022
EC # 603-102-00-9
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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.
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NO open flames, NO sparks, and NO smoking.
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Foam,
alcohol-resistant foam,
powder,
carbon dioxide.
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Explosion
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Vapour/air mixtures are explosive.
Risk of fire and explosion on contact with oxidants, acid(s), metal chlorides.
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Closed system, ventilation, explosion-proof electrical equipment and lighting.
Prevent build-up of electrostatic charges (e.g., by grounding).
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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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AVOID ALL CONTACT!
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•Inhalation
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Confusion.
Cough.
Dizziness.
Headache.
Laboured breathing.
Nausea.
Sore throat.
Unconsciousness.
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Closed system and ventilation.
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Fresh air, rest.
Artificial respiration may be needed.
Refer for medical attention.
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•Skin
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Redness.
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Protective gloves.
Protective clothing.
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First rinse with plenty of water, then remove contaminated clothes and rinse again.
Refer for medical attention.
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•Eyes
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Redness.
Pain.
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Safety goggles
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.
(See Inhalation).
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Induce vomiting (ONLY IN CONSCIOUS PERSONS!).
Rest.
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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Evacuate danger area in case of large spills!
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:
filter respirator for organic vapours of low boiling compounds.
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Fireproof.
Separated from
incompatible materials
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See Chemical Dangers.
Cool.
Store only if stabilized.
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Airtight.
F symbol
Xn symbol
R: 11-20/21/22-36/37/38-40-52/53
S: 2-9-16-29-36/37-61
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.
The vapour mixes well with air, explosive mixtures are easily formed.
As a result of flow, agitation, etc., electrostatic charges can be generated.
Chemical Dangers:
The substance may polymerize
on contact with acids,bases, tin, aluminium and iron chlorides
with fire or explosion hazard.
Reacts
with
strong oxidants
causing fire hazard.
Occupational Exposure Limits:
TLV not established.
MAK: skin absorption (H);
Carcinogen category: 2;
(DFG 2005).
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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:
No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The substance
irritates
the eyes,
the skin
and
the respiratory tract.
Exposure at high levels could cause lowering of consciousness.
Effects of Long-Term or Repeated Exposure:
The substance may have effects on the
nervous system
.
This substance is possibly carcinogenic to humans.
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Physical
Properties
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Boiling point: 63.3°C
Melting point: -130°C
Relative density (water = 1): 0.83
Solubility in water, g/100 ml at 25°C: 9.5
Vapour pressure, kPa at 20°C: 18.8
Relative vapour density (air = 1): 2.2
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Relative density of the vapour/air-mixture at 20°C (air = 1): 1.3
Flash point: -22°C
Auto-ignition temperature: 439°C
Explosive limits, vol% in air: 3.9-20.6
Octanol/water partition coefficient as log Pow: 0.416
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Environmental
Data
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N O T E S
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Depending on the degree of exposure, periodic medical examination is suggested.
Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken.
An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert.
Vapours are uninhibited and may polymerize, blocking valves and vents.
Card has been partly updated in October 2005. See sections Occupational Exposure Limits, EU classification, Emergency Response.
Transport Emergency Card: TEC (R)-30GF1-I+II-9
NFPA Code: H2; F3; R2;
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ADDITIONAL INFORMATION
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ICSC: 0636
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BUTYLENE OXIDE (STABILIZED)
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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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