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gamma-BUTYROLACTONEICSC: 1020
March 2000
CAS #: 96-48-01,4-Butanolide
Butyric acid lactone
Tetrahydro-2-furanone
Dihydro-2(3H)-furanone
EINECS #: 202-509-5

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible.    NO open flames.    Use water spray, powder, alcohol-resistant foam, carbon dioxide.   

   
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation   Use ventilation.  Fresh air, rest. 
Skin   Protective gloves.  Rinse skin with plenty of water or shower. 
Eyes Redness. Pain.  Wear safety spectacles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Vomiting. Drowsiness. Laboured breathing. Unconsciousness.  Do not eat, drink, or smoke during work.  Rinse mouth. Rest. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

 

Transportation
UN Classification
 

STORAGE
Separated from acids, alcohols, amines and bases. Dry. 
PACKAGING
 
gamma-BUTYROLACTONE ICSC: 1020
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS OILY HYGROSCOPIC LIQUID. 

Physical dangers
 

Chemical dangers
Reacts with acids, bases, alcohols and amines. Decomposes on burning. This produces irritating fumes. 

Formula: C4H6O2
Molecular mass: 86.1
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
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  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its vapour and by ingestion. 

Effects of short-term exposure
The substance is irritating to the eyes. Ingestion could cause effects on the central nervous system. This may result in respiratory failure. Exposure could cause lowering of consciousness. 

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. 

Effects of long-term or repeated exposure
 


Occupational exposure limits
MAK skin absorption (H) 

ENVIRONMENT
 

NOTES
Use of alcoholic beverages enhances the harmful effect. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations