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CYCLOPENTANONE
ICSC: 0427
Peer-Review Status: 04.08.1997 Validated
Ketocyclopentane
Adipic ketone 
CAS #: 120-92-3 RTECS #: GY4725000
UN #: 2245
EC #: 606-025-00-9
EINECS #: 204-435-9
    Formula: C5H8O
Molecular mass: 84.12

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Flammable. Heating will cause rise in pressure with risk of bursting.  NO open flames, NO sparks and NO smoking.  Use powder, AFFF, foam, carbon dioxide. 
EXPLOSION Gas/air mixtures are explosive.    In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE      
Inhalation Cough. Sore throat.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Redness. Pain.  Protective gloves.  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   Do not eat, drink, or smoke during work.   

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.   
EC Classification
Symbol: Xi; R: 10-36/38; S: (2)-23 
UN Classification
UN Hazard Class: 3; UN Pack Group: III 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-30S2245 or 30GF1-III.
NFPA Code: H2; F3; R0. 
Fireproof. Separated from acids. Cool. Keep in the dark. Keep in a well-ventilated room. Store only if stabilized. 

IMPORTANT DATA
Physical State; Appearance
CLEAR COLOURLESS LIQUID. 

Physical dangers
The vapour is heavier than air. 

Chemical dangers
The substance easily polymerizes under the influence of acids. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):. 

Routes of exposure
The substance can be absorbed into the body by inhalation of its vapour, through the skin and by ingestion. 

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. 

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

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 131°C
Melting point: -51°C
Relative density (water = 1): 0.95
Solubility in water: poor
Relative vapour density (air = 1): 2.3
Flash point: 26°C 
 

NOTES
Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken.
An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert.
Card has been partly updated in October 2005.
See section 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
       CYCLOPENTANONE (JECFA Evaluation)