ICSC 0873 - DICYCLOPENTADIENE

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DICYCLOPENTADIENE	ICSC: 0873 (October 2005)
3a,4,7,7a-Tetrahydro-4,7-methanoindene 3a,4,7,7a-Tetrahydro-4,7-methano-1H-indene 1,3-Dicyclopentadiene

CAS #: 77-73-6

UN #: 2048

EC Number: 201-052-9

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Flammable. Above 32°C explosive vapour/air mixtures may be formed.	NO open flames, NO sparks and NO smoking. Above 32°C use a closed system, ventilation and explosion-proof electrical equipment.	Use water in large amounts, foam, carbon dioxide, powder. In case of fire: keep drums, etc., cool by spraying with water.


	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Sore throat. Headache.	Use ventilation (not if powder), local exhaust or breathing protection.	Fresh air, rest.
Skin	Redness. Pain.	Protective gloves.	Remove contaminated clothes. 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	Abdominal pain. Nausea.	Do not eat, drink, or smoke during work.	Rinse mouth. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Remove all ignition sources. Personal protection: filter respirator for organic gases and particulates adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered sealable containers. 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
Store only if stabilized. Store in an area without drain or sewer access. Fireproof. Cool. Keep in the dark. Separated from strong oxidants.
PACKAGING

DICYCLOPENTADIENE

ICSC: 0873

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS CRYSTALS WITH CHARACTERISTIC ODOUR. Physical dangers Chemical dangers The substance can form explosive peroxides. Decomposes above 170°C . Reacts with oxidants.	Formula: C₁₀H₁₂ Molecular mass: 132.2 Decomposes at 170-172°C Melting point: 32-34°C Density: 0.98 g/cm³ Solubility in water, g/100ml at 25°C: 0.002 Vapour pressure, Pa at 20°C: 180 Relative vapour density (air = 1): 4.6-4.7 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.01 Flash point: 32°C o.c. Auto-ignition temperature: 503°C Explosive limits, vol% in air: 0.8-6.3 Octanol/water partition coefficient as log Pow: 2.78

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS CRYSTALS WITH CHARACTERISTIC ODOUR.

Physical dangers

Chemical dangers
The substance can form explosive peroxides. Decomposes above 170°C . Reacts with oxidants.

Formula: C₁₀H₁₂
Molecular mass: 132.2
Decomposes at 170-172°C
Melting point: 32-34°C
Density: 0.98 g/cm³
Solubility in water, g/100ml at 25°C: 0.002
Vapour pressure, Pa at 20°C: 180
Relative vapour density (air = 1): 4.6-4.7
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.01
Flash point: 32°C o.c.
Auto-ignition temperature: 503°C
Explosive limits, vol% in air: 0.8-6.3
Octanol/water partition coefficient as log Pow: 2.78

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation and by ingestion. Effects of short-term exposure The substance is irritating to the eyes, skin and respiratory tract.	Inhalation risk A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C; on spraying or dispersing, however, much faster. Effects of long-term or repeated exposure

EXPOSURE & HEALTH EFFECTS

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

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

Inhalation risk
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C; on spraying or dispersing, however, much faster.

Effects of long-term or repeated exposure

OCCUPATIONAL EXPOSURE LIMITS
TLV: 0,5 ppm as TWA; 1 ppm as STEL. MAK: 2.7 mg/m³, 0.5 ppm; peak limitation category: I(1); pregnancy risk group: D

ENVIRONMENT
The substance is toxic to aquatic organisms.

NOTES
An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert. Check for peroxides prior to distillation; eliminate if found.

ADDITIONAL INFORMATION

EC Classification
Symbol: F, Xn, N; R: 11-20/22-36/37/38-51/53; S: (2)-36/37-61

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