ICSC 0425 - CYCLOHEXANONE

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CYCLOHEXANONE	ICSC: 0425 (April 2004)
Ketohexamethylene Pimelic ketone Cyclohexyl ketone

CAS #: 108-94-1

UN #: 1915

EC Number: 203-631-1

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Flammable. Above 44°C explosive vapour/air mixtures may be formed.	NO open flames, NO sparks and NO smoking. Above 44°C use a closed system, ventilation and explosion-proof electrical equipment. Prevent build-up of electrostatic charges (e.g., by grounding).	Use alcohol-resistant foam, carbon dioxide, powder. In case of fire: keep drums, etc., cool by spraying with water.


	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Sore throat. Dizziness. Drowsiness.	Use 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.	Wear 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 refer for medical attention.
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	CLASSIFICATION & LABELLING
Personal protection: chemical protection suit and filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. 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. Then store and dispose of according to local regulations.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 3; UN Pack Group: III
STORAGE
Fireproof. Separated from strong oxidants.
PACKAGING

CYCLOHEXANONE

ICSC: 0425

PHYSICAL & CHEMICAL INFORMATION
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. This generates fire and explosion hazard.	Formula: C₆H₁₀O Molecular mass: 98.14 Boiling point: 156°C Melting point: -32.1°C Relative density (water = 1): 0.95 Solubility in water, g/100ml 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: 1.1-9.4 (at 100°C) Octanol/water partition coefficient as log Pow: 0.81 Electrical conductivity: 50000 pS/m

PHYSICAL & CHEMICAL INFORMATION

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. This generates fire and explosion hazard.

Formula: C₆H₁₀O
Molecular mass: 98.14
Boiling point: 156°C
Melting point: -32.1°C
Relative density (water = 1): 0.95
Solubility in water, g/100ml 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: 1.1-9.4 (at 100°C)
Octanol/water partition coefficient as log Pow: 0.81
Electrical conductivity: 50000 pS/m

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its vapour, through the skin and by ingestion. Effects of short-term exposure The substance and the vapour are irritating to the eyes, skin and respiratory tract. Exposure far above the OEL could cause lowering of consciousness.	Inhalation risk A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C. Effects of long-term or repeated exposure

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance and the vapour are irritating to the eyes, skin and respiratory tract. Exposure far above the OEL could cause lowering of consciousness.

Inhalation risk
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C.

Effects of long-term or repeated exposure

OCCUPATIONAL EXPOSURE LIMITS
TLV: 20 ppm as TWA; 50 ppm as STEL; (skin); A3 (confirmed animal carcinogen with unknown relevance to humans). MAK: skin absorption (H); carcinogen category: 3. EU-OEL: 40.8 mg/m³, 10 ppm as TWA; 81.6 mg/m³, 20 ppm as STEL; (skin)

ENVIRONMENT

NOTES

ADDITIONAL INFORMATION

EC Classification
Symbol: Xn; R: 10-20; S: (2)-25

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