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NIOSH

ISOAMYL ACETATE

ICSC: 0356

Isopentyl acetate
3-Methylbutyl acetate
C7H14O2 / CH3COO(CH2)2CH(CH3)2
Molecular mass: 130.2
ICSC # 0356 		CAS # 123-92-2
RTECS # NS9800000
UN # 1104
EC # 607-130-00-2
February 10, 2000 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Flammable.
NO open flames, NO sparks, and NO smoking.
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.
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 one or two glasses of water to drink. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

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.
Fireproof. Separated from strong oxidants.

Note: C
R: 10-66
S: 2-23-25
UN Hazard Class: 3
UN Packing Group: III
ICSC: 0356 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

ISOAMYL ACETATE

ICSC: 0356

I

M

P

O

R

T

A

N

T


D

A

T

A

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/m3;
Peak limitation category: I(1); Pregnancy risk group: D;
(DFG 2006).
OSHA PEL: TWA 100 ppm (525 mg/m3)
NIOSH REL: TWA 100 ppm (525 mg/m3)
NIOSH IDLH: 1000 ppm See: 123922


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 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: 142°C
Melting point: -79°C
Relative density (water = 1): 0.87
Solubility in water, g/100 ml at 20°C: 0.2
Vapour pressure, kPa at 20°C: 0.53
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 (at 100°C) -7.5
Octanol/water partition coefficient as log Pow: 2.13

ENVIRONMENTAL
DATA


N O T E S

Card has been partly updated in April 2005. See sections Occupational Exposure Limits, Emergency Response.
Transport Emergency Card: TEC (R)-30S1104 or 30GF1-III
NFPA Code: H 1; F 3; R 0;
Card has been partially updated in July 2007: see Occupational Exposure Limits, Ingestion First Aid, Fire fighting.

ADDITIONAL INFORMATION



ICSC: 0356 ISOAMYL ACETATE
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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