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1,2-BUTANEDIOLICSC: 0395
April 2014
CAS #: 584-03-21,2-Butylene glycol
1,2-Dihydroxybutane
UN #: 1993
EINECS #: 209-527-2

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible.  Above 93°C explosive vapour/air mixtures may be formed.  NO open flames.  Above 93°C use a closed system and ventilation.  Use water spray, powder, alcohol-resistant foam, carbon dioxide.  In case of fire: keep cylinder cool by spraying with water. 

 PREVENT GENERATION OF MISTS!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Dizziness. Drowsiness. Headache.  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 Nausea. Abdominal pain. Diarrhoea. Aspiration hazard!  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Refer immediately for medical attention. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
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

cancer;health haz
WARNING
Combustible liquid
May be harmful if swallowed and enters airways 

Transportation
UN Classification
UN Hazard Class: 3; UN Pack Group: III 

STORAGE
Separated from incompatible materials. See Chemical Dangers. Ventilation along the floor. 
PACKAGING
 
1,2-BUTANEDIOL ICSC: 0395
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS VISCOUS LIQUID. 

Physical dangers
 

Chemical dangers
Decomposes on heating. Reacts vigorously with strong oxidants, reducing agents, acids and acid anhydrides. 

Formula: C4H10O2 / CH3CH2CH(OH)CH2OH
Molecular mass: 90.1
Boiling point: 194°C
Melting point: -114°C
Relative density (water = 1): 1.01
Solubility in water: miscible
Vapour pressure, Pa at 20°C: 10
Relative vapour density (air = 1): 3.1
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Flash point: 93°C c.c.
Octanol/water partition coefficient as log Pow: -0.34 (20°C)
Auto-ignition temperature: 390 °C
Explosive limits, vol% in air: 1.8 - 15.7
Viscosity: 7.3 mm²/s at 20°C 


EXPOSURE & HEALTH EFFECTS

Routes of exposure
 

Effects of short-term exposure
The substance is irritating to the eyes. Exposure at high levels could cause lowering of consciousness. If swallowed the substance easily enters the airways and could result in aspiration pneumonitis. 

Inhalation risk
No indication can be given whether a harmful concentration in the air will be reached. 

Effects of long-term or repeated exposure
 


Occupational exposure limits
 

ENVIRONMENT
See Notes. 

NOTES
Environmental effects from the substance have been investigated but none has been found. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations
       1,2-Butanediol  (SIDS)