tert-BUTYL ACETATE 1445
October 2002
Acetic acid, tert-butyl ester
CAS No: 540-88-5
Acetic acid, 1,1-dimethylethyl ester
RTECS No: AF7400000
C6H12O2
UN No: 1123
Molecular mass: 116.2
EC No: 607-026-00-7
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
Highly flammable. NO open flames, NO sparks and Carbon dioxide, dry powder, foam.
FIRE
NO smoking.
Above 15.5掳C explosive vapour/air Above 15.5掳C use a closed system, In case of fire: keep drums, etc.,
EXPLOSION
mixtures may be formed. ventilation and explosion-proof cool by spraying with water.
electrical equipment.
EXPOSURE
Cough. Sore throat. Ventilation, local exhaust or Fresh air, rest.
Inhalation
breathing protection.
Dry skin. Protective gloves. Remove contaminated clothes.
Skin
Rinse and then wash skin with
water and soap.
Redness. Pain. Safety spectacles, or eye protection First rinse with plenty of water for
Eyes
in combination with breathing several minutes (remove contact
protection. lenses if easily possible), then take
to a doctor.
Do not eat, drink, or smoke during Rinse mouth.
Ingestion
work.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Do NOT wash away into sewer. Collect leaking and F Symbol
spilled liquid in sealable containers as far as R: 11-66
possible. Absorb remaining liquid in sand or inert S: (2-)16-23-25-29-33
absorbent and remove to safe place. Note: C
UN Hazard Class: 3
UN Pack Group: II
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-30S1123-II Fireproof. Separated from strong oxidants, strong bases, strong acids.
Prepared in the context of cooperation between the International
IPCS Programme on Chemical Safety and the European Commission
International 漏 IPCS 2002
Programme on
Chemical Safety SEE IMPORTANT INFORMATION ON THE BACK.
1445 tert-BUTYL ACETATE
IMPORTANT DATA
Physical State; Appearance Routes of exposure
COLOURLESS LIQUID, WITH CHARACTERISTIC ODOUR. The substance can be absorbed into the body by inhalation of
its vapour.
Physical dangers
Inhalation risk
The vapour is heavier than air and may travel along the ground;
distant ignition possible. A harmful contamination of the air will be reached rather slowly
on evaporation of this substance at 20掳C.
Chemical dangers
Effects of short-term exposure
Reacts with strong acids, strong bases, strong oxidants
including nitrates causing fire and explosion hazard. Attacks The vapour is irritating to the respiratory tract. The substance is
plastic. mildly irritating to the eyes and the skin. Exposure far above the
OEL could cause lowering of consciousness.
Occupational exposure limits
Effects of long-term or repeated exposure
TLV: 200 ppm as TWA; (ACGIH 2002).
MAK: 20 ppm; 96 mg/m3; Peak limitation category: II(4); The liquid defats the skin.
Pregnancy risk group: D; (DFG 2002).
PHYSICAL PROPERTIES
Boiling point: 97.8掳C Relative density of the vapour/air-mixture at 20掳C (air = 1): 1.19
Relative density (water = 1): 0.86 Flash point: 15.5掳C c.c.
Solubility in water: poor Explosive limits, vol% in air: 1.5-7.3
Vapour pressure, kPa at 25掳C: 6.3 Octanol/water partition coefficient as log Pow: 1.76
Relative vapour density (air = 1) : 4
ENVIRONMENTAL DATA
NOTES
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE for the use which might be made of this information
漏IPCS 2002
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