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ISOBUTYL ACETATE ICSC: 0494
Date of Peer Review: November 2003

2-Methylpropyl acetate
2-Methyl-1-propyl acetate
Acetic acid, 2-methylpropyl ester
beta-Methylpropyl ethanoate
CAS # 110-19-0 C6H12O2 / CH3COOCH2CH(CH3)2
RTECS # AI4025000 Molecular mass: 116.16
UN # 1213
EC # 607-026-00-7
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Highly flammable.
NO open flames, NO sparks, and NO smoking.
Foam, alcohol-resistant foam, dry powder, carbon dioxide.
EXPLOSION Vapour/air mixtures are explosive.
Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling.
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE


Inhalation Cough. Sore throat. Dizziness. Headache.
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.
Safety spectacles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion Nausea.
Do not eat, drink, or smoke during work.
Rinse mouth. Do NOT induce vomiting. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Ventilation. Remove all ignition sources. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT wash away into sewer. (Extra personal protection: filter respirator for organic gases and vapours.)
EU 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
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-30S1213
NFPA Code: H1; F3; R0
Fireproof. Separated from strong oxidants, strong bases and strong acids.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 1999

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ISOBUTYL ACETATE ICSC: 0494
IMPORTANT DATA
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 causing fire and explosion hazard.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 150 ppm as TWA; (ACGIH 2003).
MAK: 100 ppm, 480 mg/m; 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 20C.

EFFECTS OF SHORT-TERM EXPOSURE:
The vapour is mildly irritating to the eyes and the 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
Boiling point: 118C
Melting point: -99C
Relative density (water = 1): 0.87
Solubility in water, g/100 ml at 20C: 0.67
Vapour pressure, kPa at 20C: 1.73
Relative vapour density (air = 1): 4.0
Relative density of the vapour/air-mixture at 20C (air = 1): 1.05
Flash point: 18C c.c.
Auto-ignition temperature: 421C
Explosive limits, vol% in air: 1.3-10.5
Octanol/water partition coefficient as log Pow: 1.60
ENVIRONMENTAL DATA

NOTES

ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 1999
See Also:
        2-Butyl acetate (CHEMINFO)
        Isobutyl acetate (CHEMINFO)
        n-Butyl acetate (CHEMINFO)
        n-Butyl acetate (ICSC)
        sec-Butyl acetate (ICSC)
        tert-Butyl acetate (CHEMINFO)
        tert-Butyl acetate (ICSC)