INTOX Home Page
ISOAMYL ACETATE ICSC: 0356
Date of Peer Review: October 2000

Isopentyl acetate
3-Methylbutyl acetate
CAS # 123-92-2 C7H14O2 / CH3COO(CH2)2CH(CH3)2
RTECS # NS9800000 Molecular mass: 130.2
UN # 1104
EC # 607-130-00-2
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, powder, carbon dioxide.
EXPLOSION Above 25C explosive vapour/air mixtures may be formed.
Above 25C 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.
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.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion Sore throat. Nausea. Abdominal pain. (Further see Inhalation).
Do not eat, drink, or smoke during work.
Rinse mouth. Give plenty of water to drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
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.
EU Classification
R: 10-66
S: (2-)-23-25
Note: [C]
UN Classification
UN Hazard Class: 3
UN Pack Group: III
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-30S1104 or 30GF1-III
NFPA Code: H 1; F 3; R 0;
Fireproof. Separated from strong oxidants.
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 2004

SEE IMPORTANT INFORMATION ON BACK


ISOAMYL ACETATE ICSC: 0356
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID, WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:
The vapour mixes well with air.

CHEMICAL DANGERS:
Reacts violently with strong oxidants causing 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/m; Peak limitation category: I(1); Pregnancy risk group: IIc; (DFG 2004).
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 20C.

EFFECTS OF SHORT-TERM EXPOSURE:
The vapour is irritating to the eyes and the respiratory tract. Exposure to high concentration of vapours may result in unconsciousness.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The liquid defats the skin.
PHYSICAL PROPERTIES
Boiling point: 142C
Melting point: -79C
Relative density (water = 1): 0.87
Solubility in water, g/100 ml at 20C: 0.2
Vapour pressure, kPa at 20C: 0.53
Relative vapour density (air = 1): 4.5
Relative density of the vapour/air-mixture at 20C (air = 1): 1.018
Flash point: 25C c.c.
Auto-ignition temperature: 360C
Explosive limits, vol% in air: 1.0 (at 100C) -7.5
Octanol/water partition coefficient as log Pow: 2.13
ENVIRONMENTAL DATA

NOTES
Card has been partly updated in April 2005. See sections Occupational Exposure Limits, Emergency Response.
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 2004
See Also:
        Amyl acetate, mixed isomers (CHEMINFO)
        Isoamyl acetate (CHEMINFO)
        n-Amyl acetate (CHEMINFO)
        n-Amyl acetate (ICSC)
        sec-Amyl acetate (CHEMINFO)
        sec-Amyl acetate (ICSC)