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n-BUTYL ACETATE
ICSC: 0399
Peer-Review Status: 26.11.2003 Validated
Acetic acid, n-butyl ester
Butyl ethanoate 
CAS #: 123-86-4 RTECS #: AF7350000
UN #: 1123
EC #: 607-025-00-1
EINECS #: 204-658-1
    Formula: C6H12O2 / CH3COO(CH2)3CH3
Molecular mass: 116.2

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Flammable.  NO open flames, NO sparks and NO smoking.  Use AFFF, alcohol-resistant foam, dry powder, carbon dioxide. 
EXPLOSION Above 22°C explosive vapour/air mixtures may be formed.  Above 22°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. 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
PACKAGING & 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.   
EC Classification
R: 10-66-67; S: (2)-25; Note: 6 
UN Classification
UN Hazard Class: 3; UN Pack Group: II 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-30S1123-II.
NFPA Code: H1; F3; R0. 
Fireproof. Separated from strong oxidants, strong bases and strong acids. Cool. 

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

Occupational exposure limits
TLV: 150 ppm as TWA; 200 ppm as STEL; (ACGIH 2003).
MAK: 100 ppm, 480 mg/m³; Peak limitation category: I(2); Pregnancy risk group: C; (DFG 2003). 

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 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. 

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


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
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  
The substance is harmful to aquatic organisms. 

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