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5-METHYL-3-HEPTANONE
ICSC: 1391
Peer-Review Status: 15.03.2001 Validated
5-Methyl heptan-3-one
3-Heptanone, 5-methyl
Ethyl amyl ketone
Ethyl sec-amyl ketone 
CAS #: 541-85-5 RTECS #: MJ7350000
UN #: 2271
EC #: 606-020-00-1
EINECS #: 208-793-7
    Formula: C8H16O
Molecular mass: 128.24

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Flammable.  NO open flames, NO sparks and NO smoking.  Use water spray, powder, foam, carbon dioxide. 
EXPLOSION Above 43°C explosive vapour/air mixtures may be formed.  Above 43°C use a closed system, ventilation and explosion-proof electrical equipment.  In case of fire: keep cylinder cool by spraying with water. 
 
EXPOSURE      
Inhalation Cough. Dizziness. Headache. Nausea. Sore throat.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Dry skin. Redness.  Protective gloves.  Remove contaminated clothes. Rinse skin with plenty of water or shower. 
Eyes Redness. Pain.  Wear safety spectacles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Vomiting. 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
PACKAGING & LABELLING
Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Ventilation. Remove all ignition sources. 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. Do NOT wash away into sewer.   
EC Classification
Symbol: Xi; R: 10-36/37; S: (2)-23 
UN Classification
UN Hazard Class: 3; UN Pack Group: III 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-30S2271 or 30GF1-III.  Fireproof. Separated from strong oxidants, strong bases and strong reducing agents. Well closed. 

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

Physical dangers
The vapour is heavier than air and may travel along the ground; distant ignition possible. 

Chemical dangers
Reacts with oxidants, strong reducing agents and strong bases. This generates fire hazard. 

Occupational exposure limits
TLV: 10ppm as TWA; (ACGIH 2008). 

Routes of exposure
The substance can be absorbed into the body by inhalation. 

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. The substance may cause effects on the central nervous system. Exposure far above the OEL could cause unconsciousness. 

Effects of long-term or repeated exposure
The liquid defats the skin. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 157-162°C
Melting point: -56.7°C
Relative density (water = 1): 0.82
Solubility in water, g/100ml at 20°C: 0.3
Vapour pressure, kPa at 25°C: 0.267
Relative vapour density (air = 1): 4.4
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.0
Flash point: 43°C c.c., 57.2°C o.c. 
 

NOTES
Explosive limits are unknown in literature, although the substance is flammable and has a flash point <61°C.
The odour warning when the exposure limit value is exceeded is insufficient.
Card has been partly updated in April 2005. See sections Occupational Exposure Limits, Emergency Response.
Card has been partially updated in February 2009: see Occupational Exposure Limits, Ingestion First Aid, Fire fighting. 

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