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2-BUTANOLICSC: 0112
April 2005
CAS #: 78-92-2sec-Butyl alcohol
Butan-2-ol
1-Methyl propanol
Methyl ethyl carbinol
Butylene hydrate
UN #: 1120
EINECS #: 201-158-5

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Flammable.  Above 24°C explosive vapour/air mixtures may be formed.  NO open flames, NO sparks and NO smoking.  Above 24°C use a closed system, ventilation and explosion-proof electrical equipment.  Use water spray, powder, foam, carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. 

   
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Headache. Dizziness. Drowsiness.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Dry skin.  Protective gloves.  Remove contaminated clothes. Rinse skin with plenty of water or shower. 
Eyes Redness. Pain.  Wear safety goggles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Dizziness. Drowsiness.  Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. Do NOT induce vomiting. 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. Wash away remainder with plenty of water. 

According to UN GHS Criteria

 

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

STORAGE
Fireproof. Separated from strong oxidants and aluminium. 
PACKAGING
 
2-BUTANOL ICSC: 0112
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
 

Chemical dangers
The substance can form explosive peroxides. Reacts with aluminium when heated to 100°C and strong oxidants such as chromium trioxide. This produces flammable/explosive gas (hydrogen - see ICSC 0001). Attacks some forms of plastic, rubber and coatings. 

Formula: C4H10O / CH3CHOHCH2CH3
Molecular mass: 74.1
Boiling point: 100°C
Melting point: -115°C
Relative density (water = 1): 0.81
Solubility in water, g/100ml at 20°C: 12.5
Vapour pressure, kPa at 20°C: 1.7
Relative vapour density (air = 1): 2.55
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.03
Flash point: 24°C c.c.
Auto-ignition temperature: 406°C
Explosive limits, vol% in air: 1.7-9.0
Octanol/water partition coefficient as log Pow: 0.6  


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. Exposure far above the OEL could cause lowering of consciousness. If this liquid is swallowed, aspiration into the lungs may result in chemical pneumonitis. 

Inhalation risk
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C. 

Effects of long-term or repeated exposure
The substance defats the skin, which may cause dryness or cracking. 


Occupational exposure limits
TLV: 100 ppm as TWA 

ENVIRONMENT
 

NOTES
Check for peroxides prior to distillation; eliminate if found. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: Xi; R: 10-36/37-67; S: (2)-7/9-13-24/25-26-46; Note: C 

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    See Also:
       Toxicological Abbreviations