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n-BUTYL ACETATE ICSC: 0399
Date of Peer Review: November 2003

Acetic acid, n-butyl ester
Butyl ethanoate
CAS # 123-86-4 C6H12O2 / CH3COO(CH2)3CH3
RTECS # AF7350000 Molecular mass: 116.2
UN # 1123
EC # 607-025-00-1
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Flammable.
NO open flames, NO sparks, and NO smoking.
AFFF, alcohol-resistant foam, dry powder, carbon dioxide.
EXPLOSION Above 22C explosive vapour/air mixtures may be formed.
Above 22C 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.
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.
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 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 metal or glass containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. (Extra personal protection: filter respirator for organic gases and vapours.)
EU Classification
R: 10-66-67
S: (2-)-25
Note: [6]
UN Classification
UN Hazard Class: 3
UN Pack Group: II
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-30S1123-II
NFPA Code: H1; F3; R0
Fireproof. Separated from strong oxidants, strong bases, strong acids. Cool.
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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n-BUTYL ACETATE ICSC: 0399
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, strong bases causing 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/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 substance is 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: 126C
Melting point: -78C
Relative density (water = 1): 0.88
Solubility in water, g/100 ml at 20C: 0.7
Vapour pressure, kPa at 20C: 1.2
Relative vapour density (air = 1): 4.0
Relative density of the vapour/air-mixture at 20C (air = 1): 1.04
Flash point: 22C c.c.
Auto-ignition temperature: 420C
Explosive limits, vol% in air: 1.2-7.6
Octanol/water partition coefficient as log Pow: 1.82
ENVIRONMENTAL DATA
The substance is harmful to aquatic organisms.
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)
        Isobutyl acetate (ICSC)
        n-Butyl acetate (CHEMINFO)
        sec-Butyl acetate (ICSC)
        tert-Butyl acetate (CHEMINFO)
        tert-Butyl acetate (ICSC)