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sec-BUTYL ACETATEICSC: 0840
November 2003
CAS #: 105-46-41-Methylpropyl acetate
Acetic acid, 2-butyl ester
UN #: 1123
EINECS #: 203-300-1

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Highly flammable.  Vapour/air mixtures are explosive.  NO open flames, NO sparks and NO smoking.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling.  Use foam, 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 and then wash skin with water and soap. 
Eyes Redness.  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.  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Remove all ignition sources. Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Ventilation. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer. 

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. 
PACKAGING
 
sec-BUTYL ACETATE ICSC: 0840
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
The vapour mixes well with air, explosive mixtures are easily formed. 

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

Formula: C6H12O2 / CH3COOCH(CH3)CH2CH3
Molecular mass: 116.16
Boiling point: 112°C
Melting point: -99°C
Relative density (water = 1): 0.87
Solubility in water, g/100ml at 20°C: 0.8
Vapour pressure, kPa at 20°C: 1.33
Relative vapour density (air = 1): 4.0
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.04
Flash point: 17°C c.c.
Explosive limits, vol% in air: 1.7-9.8
Octanol/water partition coefficient as log Pow: 1.51  


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 vapour is mildly 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 

ENVIRONMENT
 

NOTES
Health effects of exposure to the substance have not been investigated adequately.
Environmental effects from the substance have not been investigated adequately. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: F; R: 11-66; S: (2)-16-23-25-29-33; Note: C 

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    See Also:
       Toxicological Abbreviations