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tert-BUTYL ACETATE
ICSC: 1445
Peer-Review Status: 10.09.2002 Validated
Acetic acid, tert-butyl ester
Acetic acid, 1,1-dimethylethyl ester 
CAS #: 540-88-5 RTECS #: AF7400000
UN #: 1123
EC #: 607-026-00-7
EINECS #: 208-760-7
    Formula: C6H12O2
Molecular mass: 116.2

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Highly flammable.  NO open flames, NO sparks and NO smoking.  Use carbon dioxide, dry powder, foam. 
EXPLOSION Above 15.5°C explosive vapour/air mixtures may be formed.  Above 15.5°C use a closed system, ventilation and explosion-proof electrical equipment.  In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE      
Inhalation Cough. Sore throat.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. 
Skin Dry skin.  Protective gloves.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes Redness. Pain.  Wear safety spectacles 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   Do not eat, drink, or smoke during work.  Rinse mouth. 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Do NOT wash away into sewer. 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
Symbol: F; R: 11-66; S: (2)-16-23-25-29-33; Note: C 
UN Classification
UN Hazard Class: 3; UN Pack Group: II 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-30S1123-II.  Fireproof. Separated from strong oxidants, strong bases and strong acids. 

IMPORTANT DATA
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 acids, strong bases and strong oxidants including nitrates. This generates fire and explosion hazard. Attacks plastics. 

Occupational exposure limits
TLV: 200ppm as TWA; (ACGIH 2002).
MAK: 20 ppm, 96 mg/m³; Peak limitation category: II(4); Pregnancy risk group: D; (DFG 2002). 

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

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

Effects of short-term exposure
The vapour is irritating to the respiratory tract. The substance is mildly irritating to the eyes and skin. Exposure far above the OEL could cause lowering of consciousness. 

Effects of long-term or repeated exposure
The liquid defats the skin. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 97.8°C
Relative density (water = 1): 0.86
Solubility in water: poor
Vapour pressure, kPa at 25°C: 6.3
Relative vapour density (air = 1): 4
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.19
Flash point: 15.5°C c.c.
Explosive limits, vol% in air: 1.5-7.3
Octanol/water partition coefficient as log Pow: 1.76  
 

NOTES
 

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