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n-BUTYL ACETATEICSC: 0399
November 2003
CAS #: 123-86-4Acetic acid, n-butyl ester
Butyl ethanoate
UN #: 1123
EINECS #: 204-658-1

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Flammable.  Above 22°C explosive vapour/air mixtures may be formed.  NO open flames, NO sparks and NO smoking.  Above 22°C use a closed system, ventilation and explosion-proof electrical equipment.  Use AFFF, alcohol-resistant foam, dry powder, carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. 

   
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough. Sore throat. Dizziness. Headache.  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 or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Nausea.  Do not eat, drink, or smoke during work.  Rinse mouth. 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. Ventilation. Remove all ignition sources. Collect leaking and spilled liquid in sealable metal or glass 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
UN Hazard Class: 3; UN Pack Group: II 

STORAGE
Fireproof. Separated from strong oxidants, strong bases and strong acids. Cool. 
PACKAGING
 
n-BUTYL ACETATE ICSC: 0399
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
The vapour is heavier than air and may travel along the ground; distant ignition possible. 

Chemical dangers
Reacts with strong oxidants, strong acids and strong bases. This generates fire and explosion hazard. Attacks many plastics and rubber. 

Formula: C6H12O2 / CH3COO(CH2)3CH3
Molecular mass: 116.2
Boiling point: 126°C
Melting point: -78°C
Relative density (water = 1): 0.88
Solubility in water, g/100ml at 20°C: 0.7
Vapour pressure, kPa at 20°C: 1.2
Relative vapour density (air = 1): 4.0
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.04
Flash point: 22°C c.c.
Auto-ignition temperature: 420°C
Explosive limits, vol% in air: 1.2-7.6
Octanol/water partition coefficient as log Pow: 1.82  


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the eyes and respiratory tract. The substance may cause effects on the central nervous system. Exposure far above the OEL could cause lowering of consciousness. 

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: 50 ppm as TWA; 150 ppm as STEL.
MAK: 480 mg/m3, 100 ppm; peak limitation category: I(2); pregnancy risk group: C 

ENVIRONMENT
The substance is harmful to aquatic organisms. 

NOTES
 

ADDITIONAL INFORMATION
  EC Classification
R: 10-66-67; S: (2)-25; Note: 6 

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    See Also:
       Toxicological Abbreviations