INTOX Home Page
CYCLOHEXANONE ICSC: 0425
Date of Peer Review: April 2004

Ketohexamethylene
Pimelic ketone
Cyclohexyl ketone
CAS # 108-94-1 C6H10O
RTECS # GW1050000 Molecular mass: 98.14
UN # 1915
EC # 606-010-00-7
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Flammable.
NO open flames, NO sparks, and NO smoking.
Alcohol-resistant foam, carbon dioxide, powder.
EXPLOSION Above 44C explosive vapour/air mixtures may be formed.
Above 44C use a closed system, ventilation, and explosion-proof electrical equipment. Prevent build-up of electrostatic charges (e.g., by grounding).
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE


Inhalation Cough. Sore throat. Dizziness. Drowsiness.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Refer for medical attention.
Skin MAY BE ABSORBED! Dry skin. Redness.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
Eyes Redness. Pain.
Safety goggles, or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion Abdominal pain. Burning sensation.
Do not eat, drink, or smoke during work.
Rinse mouth. Give plenty of water to drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Remove all ignition sources. 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: filter respirator for organic gases and vapours. Chemical protection suit.
EU Classification
Symbol: Xn
R: 10-20
S: (2-)-25
UN Classification
UN Hazard Class: 3
UN Pack Group: III
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-30S1915.
NFPA Code: H1; F2; R0;
Fireproof. Separated from strong oxidants.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 1999

SEE IMPORTANT INFORMATION ON BACK
CYCLOHEXANONE ICSC: 0425
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS OILY LIQUID, WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:
The vapour is heavier than air. As a result of flow, agitation, etc., electrostatic charges can be generated.

CHEMICAL DANGERS:
Reacts with strong oxidants such as nitric acid causing fire and explosion hazard.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 20 ppm as TWA; 50 ppm as STEL; (skin); A3; (ACGIH 2004).
EU OEL: 10 ppm as TWA; 20 ppm as STEL; (skin); (EU 2000).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour, through the skin and by ingestion.

INHALATION RISK:
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance and the vapour is irritating to the eyes, the skin and the respiratory tract. Exposure far above the OEL could cause lowering of consciousness.

PHYSICAL PROPERTIES
Boiling point: 156C
Melting point: -32.1C
Relative density (water = 1): 0.95
Solubility in water, g/100 ml at 20C: 8.7
Vapour pressure, Pa at 20C: 500
Relative vapour density (air = 1): 3.4
Relative density of the vapour/air-mixture at 20C (air = 1): 1.01
Flash point: 44C c.c.
Auto-ignition temperature: 420C
Explosive limits, vol% in air: 1.1 (at 100C) -9.4
Octanol/water partition coefficient as log Pow: 0.81
ENVIRONMENTAL DATA

NOTES

ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 1999