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DIISOBUTYL KETONE
ICSC: 0713
Peer-Review Status: 10.10.1997 Validated
2,6-Dimethyl-4-heptanone
Isovalerone
2,6-Dimethylheptan-4-one 
CAS #: 108-83-8 RTECS #: MJ5775000
UN #: 1157
EC #: 606-005-00-X
EINECS #: 203-620-1
    Formula: C9H18O / (CH3CH(CH3)CH2)2CO
Molecular mass: 142.2

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Flammable.  NO open flames, NO sparks and NO smoking.  Use AFFF, alcohol-resistant foam, powder, carbon dioxide. 
EXPLOSION Above 49°C explosive vapour/air mixtures may be formed.  Above 49°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 Cough. Dizziness. Headache. Nausea. Sore throat. Vomiting.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Artificial respiration may be needed. Refer for medical attention. 
Skin Redness. Numbness.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes Redness. Pain.  Wear safety goggles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion See Inhalation.  Do not eat, drink, or smoke during work.  Rinse mouth. Give a slurry of activated charcoal in water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: filter respirator for organic gases and particulates adapted to the airborne concentration of the substance. Ventilation. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.   
EC Classification
Symbol: Xi; R: 10-37; S: (2)-24 
UN Classification
UN Hazard Class: 3; UN Pack Group: III 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-30GF1-I+II.
NFPA Code: H1; F2; R0. 
Fireproof. Separated from strong oxidants. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
 

Chemical dangers
Reacts with oxidants. Attacks some forms of plastic. 

Occupational exposure limits
TLV: 25ppm as TWA; (ACGIH 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 20°C. 

Effects of short-term exposure
The substance is irritating to the eyes, skin and 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. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
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
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) 
 

NOTES
Card has been partly updated in October 2005.
See sections Occupational Exposure Limits, Emergency Response. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations