ICSC 0923 - METHYLCYCLOHEXANE

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METHYLCYCLOHEXANE	ICSC: 0923 (July 1997)
Hexahydrotoluene Cyclohexylmethane

CAS #: 108-87-2

UN #: 2296

EC Number: 203-624-3

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Highly flammable. Vapour/air mixtures are explosive.	NO open flames, NO sparks and NO smoking. Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding). Do NOT use compressed air for filling, discharging, or handling. Use non-sparking handtools.	Use powder, foam, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water.

PREVENT GENERATION OF MISTS!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Dizziness. Drowsiness.	Use ventilation, local exhaust or breathing protection.	Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.
Skin	Dry skin.	Protective gloves.	Remove contaminated clothes. Rinse skin with plenty of water or shower.
Eyes	Redness.	Wear safety spectacles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Nausea. Further see Inhalation.	Do not eat, drink, or smoke during work.	Rinse mouth. Rest. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Ventilation. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in dry sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 3; UN Pack Group: II
STORAGE
Fireproof. Separated from strong oxidants.
PACKAGING

METHYLCYCLOHEXANE

ICSC: 0923

PHYSICAL & CHEMICAL INFORMATION
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. As a result of flow, agitation, etc., electrostatic charges can be generated. Chemical dangers Reacts violently with strong oxidants. This generates fire and explosion hazard.	Formula: C₇H₁₄ / C₆H₁₁CH₃ Molecular mass: 98.21 Boiling point: 101°C Melting point: -126.7°C Relative density (water = 1): 0.8 Solubility in water: none Vapour pressure, kPa at 25°C: 5.73 Relative vapour density (air = 1): 3.4 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.1 Flash point: -6°C o.c. Auto-ignition temperature: 258°C Explosive limits, vol% in air: 1.2-6.7

PHYSICAL & CHEMICAL INFORMATION

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. As a result of flow, agitation, etc., electrostatic charges can be generated.

Chemical dangers
Reacts violently with strong oxidants. This generates fire and explosion hazard.

Formula: C₇H₁₄ / C₆H₁₁CH₃
Molecular mass: 98.21
Boiling point: 101°C
Melting point: -126.7°C
Relative density (water = 1): 0.8
Solubility in water: none
Vapour pressure, kPa at 25°C: 5.73
Relative vapour density (air = 1): 3.4
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.1
Flash point: -6°C o.c.
Auto-ignition temperature: 258°C
Explosive limits, vol% in air: 1.2-6.7

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its vapour and by ingestion. Effects of short-term exposure The substance is irritating to the eyes and skin. If this liquid is swallowed, aspiration into the lungs may result in chemical pneumonitis. The substance may cause effects on the central nervous system. Exposure could cause lowering of consciousness.	Inhalation risk Effects of long-term or repeated exposure The substance defats the skin, which may cause dryness or cracking.

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the eyes and skin. If this liquid is swallowed, aspiration into the lungs may result in chemical pneumonitis. The substance may cause effects on the central nervous system. Exposure could cause lowering of consciousness.

Inhalation risk

Effects of long-term or repeated exposure
The substance defats the skin, which may cause dryness or cracking.

OCCUPATIONAL EXPOSURE LIMITS
TLV: 400 ppm as TWA. MAK: 810 mg/m³, 200 ppm; peak limitation category: II(2); pregnancy risk group: D

ENVIRONMENT

NOTES

ADDITIONAL INFORMATION

EC Classification
Symbol: F, Xn, N; R: 11-38-51/53-65-67; S: (2)-9-16-33-61-62

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