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ISOAMYL ACETATE
ICSC: 0356
Peer-Review Status: 10.02.2000 Validated
Isopentyl acetate
3-Methylbutyl acetate 
CAS #: 123-92-2 RTECS #: NS9800000
UN #: 1104
EC #: 607-130-00-2
EINECS #: 204-662-3
    Formula: C7H14O2 / CH3COO(CH2)2CH(CH3)2
Molecular mass: 130.2

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Flammable.  NO open flames, NO sparks and NO smoking.  Use alcohol-resistant foam, powder, carbon dioxide. 
EXPLOSION Above 25°C explosive vapour/air mixtures may be formed.  Above 25°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 Sore throat. Cough. Headache. Weakness. 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 Sore throat. Nausea. Abdominal pain. Further see Inhalation.  Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.   
EC Classification
R: 10-66; S: (2)-23-25; Note: C 
UN Classification
UN Hazard Class: 3; UN Pack Group: III 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-30S1104 or 30GF1-III.
NFPA Code: H1; F3; R0. 
Fireproof. Separated from strong oxidants. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
 

Chemical dangers
Reacts violently with strong oxidants. This generates fire and explosion hazard. Attacks some forms of resins. 

Occupational exposure limits
TLV: 50 ppm as TWA; 100 ppm as STEL; (ACGIH 2004).
MAK: 50 ppm, 270 mg/m³; Peak limitation category: I(1); Pregnancy risk group: D; (DFG 2006). 

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

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 eyes and respiratory tract. Exposure to high concentrations of vapour could cause unconsciousness. 

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


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 142°C
Melting point: -79°C
Relative density (water = 1): 0.87
Solubility in water, g/100ml at 20°C: 0.2
Vapour pressure, kPa at 20°C:
Relative vapour density (air = 1): 4.5
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.018
Flash point: 25°C c.c.
Auto-ignition temperature: 360°C
Explosive limits, vol% in air: 1.0-7.5 (at 100°C)
Octanol/water partition coefficient as log Pow: 2.13  
 

NOTES
Card has been partly updated in April 2005.
See sections Occupational Exposure Limits, Emergency Response.
Card has been partially updated in July 2007: see Occupational Exposure Limits, Ingestion First Aid, Fire fighting. 

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
       ISOAMYL ACETATE (JECFA Evaluation)