1,3-Dimethylbutyl acetate
Methylisoamyl acetate
Acetic acid, 1,3-dimethylbutyl ester
4-Methyl-2-pentanol, acetate
C8H16O2 / CH3COOCH(CH3)CH2CH(CH3)2
Molecular mass: 144.2
ICSC # 1335
CAS # 108-84-9
RTECS # SA7525000
UN # 1233
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Flammable.
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NO open flames, NO sparks, and NO smoking.
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Powder, alcohol-resistant foam, water spray, carbon dioxide.
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Explosion
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Above 45°C explosive vapour/air mixtures may be formed.
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Above 45°C use a closed system, ventilation, and explosion-proof electrical equipment.
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In case of fire: keep drums, etc., cool by spraying with water.
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Exposure
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•Inhalation
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Cough.
Sore throat.
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Ventilation, local exhaust, or breathing protection.
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Fresh air, rest.
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•Skin
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Redness.
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Protective gloves.
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Remove contaminated clothes.
Rinse and then wash skin with water and soap.
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•Eyes
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Redness.
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Safety spectacles.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Rinse mouth.
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Spillage Disposal
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Storage
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Packaging & Labelling
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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.
Personal protection:
filter respirator for organic gases and vapours.
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Fireproof.
Separated from
strong oxidants.
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UN Hazard Class: 3
UN Packing Group: III
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Important Data
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Physical State; Appearance:
COLOURLESS LIQUID
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
Chemical Dangers:
Reacts
with
strong oxidants
.
Occupational Exposure Limits:
TLV: 50 ppm as TWA; (ACGIH 2004).
MAK: IIb (not established but data is available) (DFG 2004).
OSHA PEL: TWA 50 ppm (300 mg/m3)
NIOSH REL: TWA 50 ppm (300 mg/m3)
NIOSH IDLH: 500 ppm See: 108849
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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 20°C.
Effects of Short-Term Exposure:
The substance
is irritating to
the eyes
,
the skin
and
the respiratory tract
.
Exposure at high levels may result in unconsciousness.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point: 146°C
Melting point: -64°C
Relative density (water = 1): 0.86
Solubility in water: none
Vapour pressure, kPa at 20°C: 0.4
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Relative vapour density (air = 1): 5.0
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.01
Flash point: 45°C c.c.
Explosive limits, vol% in air: 0.9-5.7
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Environmental
Data
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N O T E S
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Card has been partly updated in April 2005. See sections Occupational Exposure Limits, Emergency Response.
Transport Emergency Card: TEC (R)-30GF1-III
NFPA Code: H1; F2; R0;
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ADDITIONAL INFORMATION
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ICSC: 1335
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sec-HEXYL ACETATE
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(C) IPCS, CEC, 1994
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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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