ICSC 0425 - CYCLOHEXANONE

[List of Chemicals] [Risk Notes] [Risk Phrases] [Safety Phrases] [Danger Symbols]

CYCLOHEXANONE

ICSC: 0425
_{April 2004}

Ketohexamethylene
Pimelic ketone
Cyclohexyl ketone

CAS No: 108-94-1
RTECS No: GW1050000
UN No: 1915
EC No: 606-010-00-7

C₆H₁₀O
Molecular mass: 98.14

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 44°C explosive vapour/air mixtures may be formed.	Above 44°C 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 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. Chemical protection suit. 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.	EU classification Xn Symbol R: 10-20 S: (2-)25 UN classification UN Hazard Class: 3 UN Pack Group: III

EMERGENCY RESPONSE	SAFE STORAGE
Transport Emergency Card: TEC (R)-30S1915. NFPA Code: H1; F2; R0	Fireproof. Separated from strong oxidants.

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, 40.8 mg/m³ as TWA; 20 ppm, 81.6 mg/m³ 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 20°C.

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

ENVIRONMENTAL DATA

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

NOTES

Card has been partially updated in July 2007: see Occupational Exposure Limits, Ingestion First Aid, Spillage Disposal.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2006

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.

Updated by AS. Approved by GS. Last update: 29.01.2008