1,4-Butanolide
Butyric acid lactone
Tetrahydro-2-furanone
Dihydro-2(3H)-furanone
C4H6O2
Molecular mass: 86.1
ICSC # 1020
CAS # 96-48-0
RTECS # LU3500000
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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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Combustible.
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NO open flames.
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Powder, alcohol-resistant foam, water spray, carbon dioxide.
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Explosion
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Exposure
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•Inhalation
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Ventilation.
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Fresh air, rest.
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•Skin
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Protective gloves.
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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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Vomiting.
Drowsiness.
Laboured breathing.
Unconsciousness.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
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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Collect leaking liquid in sealable containers.
Absorb remaining liquid in sand or inert absorbent and remove to safe place.
(Extra personal protection: filter respirator for organic gases and vapours).
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Separated from
acids,
alcohols
,
amines
and
bases
.
Dry.
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Important Data
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Physical State; Appearance:
COLOURLESS
,
OILY
,
HYGROSCOPIC LIQUID
.
Physical Dangers:
Chemical Dangers:
Reacts
with
acids
,
bases
,
alcohols
and
amines
.
The substance decomposes
on burning
producing
irritating fumes
.
Occupational Exposure Limits:
TLV not established.
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its vapour 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 substance may cause effects on the
central nervous system
, resulting in
respiratory failure
when ingested.
Exposure could cause lowering of consciousness.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point: 204°C
Melting point: -44°C
Relative density (water = 1): 1.1
Solubility in water:
miscible
Vapour pressure, kPa at 20°C: 0.15
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Relative vapour density (air = 1): 3.0
Flash point:
98°C c.c.
Auto-ignition temperature: 455°C
Explosive limits, vol% in air: 0.3-16.0
Octanol/water partition coefficient as log Pow: -0.57
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Environmental
Data
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N O T E S
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Use of alcoholic beverages enhances the harmful effect.
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ADDITIONAL INFORMATION
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ICSC: 1020
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gamma-BUTYROLACTONE
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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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