Product Identification

Product Name

2,5-Norbornadiene

Synonyms

8,9,10-Trinorborna-2,5-diene
Bicyclo[2.2.1]hepta-2,5-diene
Bicycloheptadiene

CAS

121-46-0

Formula

C7H8

Molecular Weight

92.14

EINECS

204-472-0

RTECS

RB6535000

RTECS Class

Other

Beilstein/Gmelin

506224

Beilstein Reference

4-05-00-00879

EC Class

highly flammable, harmful

Physical and Chemical Properties

Appearance

A colorless liquid with a hydrocarbon odor.

Solubility in water

Slightly soluble

Melting Point

-20

Boiling Point

90

Vapor Pressure

66 (25 C)

Density

0.9064 g/cm3 (20 C)

Partition Coefficient

2.67

Heat Of Vaporization

34.1 kJ/mol

Usage

Used in a number of high technology applications in the fields of material science agriculture and pharmaceuticals.

Refractive Index

1.4693 (20 C)

First Aid Measures

Ingestion

Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.

Skin

Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage

Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Keep under a nitrogen blanket. Flammables-area.

Handling

Wash thoroughly after handling. Wash hands before eating. Use only in a well ventilated area. Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Do not get on skin or in eyes. Avoid ingestion and inhalation.

Hazards Identification

Inhalation

May cause respiratory tract irritation.

Skin

Causes skin irritation.

Eyes

Causes eye irritation.

Ingestion

May cause gastrointestinal irritation with nausea, vomiting and diarrhea.

Hazards

Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. May polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.

EC Risk Phrase

R 11

EC Safety Phrase

S 16 23 33

UN (DOT)

2251

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

Respirators

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Exposure Effects

The toxological properties of this substance have not been fully investigated.

Poison Class

-

Fire Fighting Measures

Flash Point

-11

Autoignition

350

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. Extinguishing media: Use foam, dry chemical, or carbon dioxide.

Upper exp. limit

6.3

Lower exp. limit

1.1

Fire Potential

HIGHLY FLAMMABLE.

Accidental Release Measures

Small spills/leaks

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment. Scoop up with a nonsparking tool, then place into a suitable container for disposal. Remove all sources of ignition.

Stability and Reactivity

Disposal Code

1

Incompatibilities

Strong acids, strong bases, strong oxidizing agents, and air.

Stability

Unstable.

Decomposition

Carbon monoxide, carbon dioxide.

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

2251

Hazard Class

3

Packing Group

II

HS Code

2902 19 90