2,6-Dimethyl-4-heptanone
Isovalerone
2,6-Dimethylheptan-4-one
C9H18O / (CH3CH(CH3)CH2)2CO
Molecular mass: 142.2
ICSC # 0713
CAS # 108-83-8
RTECS # MJ5775000
UN # 1157
EC # 606-005-00-X
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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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AFFF,
alcohol-resistant foam,
powder,
carbon dioxide.
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Explosion
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Above 49°C explosive vapour/air mixtures may be formed.
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Above 49°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.
Dizziness.
Headache.
Nausea.
Sore throat.
Vomiting.
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Ventilation, local exhaust, or breathing protection.
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Fresh air, rest.
Artificial respiration may be needed.
Refer for medical attention.
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•Skin
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Redness.
Numbness.
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Protective gloves.
Protective clothing.
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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.
Pain.
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Safety goggles.
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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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(See Inhalation).
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Give a slurry of activated charcoal in water to drink.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Ventilation.
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: A/P2 filter respirator for organic vapour and harmful dust.
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Fireproof.
Separated from
strong oxidants.
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Xi symbol
R: 10-37
S: 2-24
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 oxidants.
Attacks some forms of plastics.
Occupational Exposure Limits:
TLV: 25 ppm as TWA; (ACGIH 2004).
MAK: IIb (not established but data is available); (DFG 2004).
OSHA PEL: TWA 50 ppm (290 mg/m3)
NIOSH REL: TWA 25 ppm (150 mg/m3)
NIOSH IDLH: 500 ppm See: 108838
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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 substance
irritates
the eyes,
the skin
and
the respiratory tract.
Exposure to high concentrations could cause lowering of consciousness.
Effects of Long-Term or Repeated Exposure:
Repeated or prolonged contact with skin may cause dermatitis.
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Physical
Properties
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Boiling point: 168°C
Melting point: -42°C
Relative density (water = 1): 0.805
Solubility in water:
none
Vapour pressure, kPa at 20°C: 0.23
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Relative vapour density (air = 1): 4.9
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.01
Flash point: 49°C c.c.
Auto-ignition temperature: 396°C
Explosive limits, vol% in air: 0.8-6.2 (at 93°C)
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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 October 2005. See sections Occupational Exposure Limits, Emergency Response.
Transport Emergency Card: TEC (R)-30GF1-I+II
NFPA Code: H1; F2; R0;
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ADDITIONAL INFORMATION
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ICSC: 0713
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DIISOBUTYL KETONE
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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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