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1,2-BUTANEDIOL
ICSC: 0395
Peer-Review Status: 11.04.2014 Validated
1,2-Butylene glycol
1,2-Dihydroxybutane
CAS #: 584-03-2 RTECS #: EK0380000
UN #: 1993
EINECS #: 209-527-2
    Formula: C4H10O2 / CH3CH2CH(OH)CH2OH
Molecular mass: 90.1

TYPES OF HAZARD
/ EXPOSURE
ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE-FIGHTING
FIRE Combustible.  NO open flames.  Use water spray, powder, alcohol-resistant foam, carbon dioxide. 
EXPLOSION Above 93°C explosive vapour/air mixtures may be formed.  Above 93°C use a closed system and ventilation.  In case of fire: keep cylinder cool by spraying with water. 
 
EXPOSURE   PREVENT GENERATION OF MISTS!   
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
PACKAGING & 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.   
EC Classification
 
UN Classification
UN Hazard Class: 3; UN Pack Group: III 
GHS Classification
Signal: Warning
Combustible liquid
May be harmful if swallowed and enters airways 
cancer;health haz

EMERGENCY RESPONSE SAFE STORAGE
NFPA Code: H1; F2; R0.  Separated from incompatible materials. See Chemical Dangers. Ventilation along the floor. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS VISCOUS LIQUID. 

Physical dangers
 

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

Occupational exposure limits
TLV not established.
MAK (not established):. 

Routes of exposure
 

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

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. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
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 
See Notes. 

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

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.
    See Also:
       Toxicological Abbreviations
       1,2-Butanediol  (SIDS)