5-ETHYLIDENE-2-NORBORNENE Property

Melting point:

-80.15°C

Boiling point:

146 °C(lit.)

Density 

0.893 g/mL at 25 °C(lit.)

vapor density 

4.1 (vs air)

vapor pressure 

4.6 mm Hg ( 20 °C)

refractive index 

n20/D 1.49(lit.)

Flash point:

101 °F

storage temp. 

Flammables area

solubility 

Chloroform (Slightly), Hexanes (Slightly)

form 

Liquid

color 

Colorless to Almost colorless

explosive limit

~6.4%

Water Solubility 

Soluble in water (0.01% at 20C).

Exposure limits

ACGIH: TWA 2 ppm; STEL 4 ppm
NIOSH: Ceiling 5 ppm(25 mg/m3)

Stability:

Volatile

LogP

3.82 at 20℃

CAS DataBase Reference

16219-75-3(CAS DataBase Reference)

EPA Substance Registry System

5-Ethylidene-2-norbornene (16219-75-3)

Safety

Hazard Codes 

Xn,N

Risk Statements 

10-22-36/37/38-65-51/53-48/20-43-38-20

Safety Statements 

16-26-36/37/39-62-61

OEL

Ceiling: 5 ppm (25 mg/m3)

RIDADR 

UN 2929 6.1/PG 2

WGK Germany 

2

RTECS 

RB9450000

TSCA 

Yes

HazardClass 

3

PackingGroup 

III

HS Code 

29021990

Hazardous Substances Data

16219-75-3(Hazardous Substances Data)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H226Flammable liquid and vapour

H304May be fatal if swallowed and enters airways

H315Causes skin irritation

H332Harmful if inhaled

H373May cause damage to organs through prolonged or repeated exposure

H411Toxic to aquatic life with long lasting effects

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P273Avoid release to the environment.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P314Get medical advice/attention if you feel unwell.

5-ETHYLIDENE-2-NORBORNENE Chemical Properties,Usage,Production

Chemical Properties

clear colorless to yellow liquid

Chemical Properties

5-Ethylidene- 2-norbornene is a colorless liquid with a turpentine-like odor. The Odor Threshold is 0.007 ppm.

Uses

Ethylidene norbornene is the third monomer in EPDM (ethylene–propylene diene monomer) elastomers.

Uses

As third monomer in EPDM (ethylene- propylene diene monomer)

Uses

5-Ethylidene-2-norbornene is used as a self healing agent for polymeric composites. It is also used to reinforce multiwalled carbon nanotubes.

Definition

A diene used as the third monomer in EPDM elastomers.

General Description

Colorless liquid with an odor of turpentine. Flash point 101°F. Floats on water.

Air & Water Reactions

Flammable. Insoluble in water.

Reactivity Profile

5-ETHYLIDENE-2-NORBORNENE may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas. In the presence of various catalysts (such as acids) or initiators, may undergo exothermic addition polymerization reactions.

Hazard

Toxic.

Health Hazard

Inhalation of vapors causes headache, confusion, and respiratory distress. Ingestion causes irritation of entire digestive system. Aspiration causes severe pneumonia. Contact with liquid causes irritation of eyes and skin.

Fire Hazard

5-ETHYLIDENE-2-NORBORNENE is flammable.

Safety Profile

Moderately toxic by ingestion. Mildly toxic by inhalation and sh contact. Human systemic effects by inhalation: conjunctiva, olfactory, and taste changes. A skin irritant. When heated to decomposition it emits acrid smoke and irritating fumes.

Potential Exposure

5-Ethylidene-2-norbornene is used as the third monomer in terpolymer elastomers. Those engaged in the synthesis of pharmaceuticals; pesticides, or in the preparation of specialty resins.

Shipping

UN1993 Flammable liquids, n.o.s., Hazard Class: 3; Labels: 3-Flammable liquid, Technical Name Required.

Incompatibilities

May form explosive mixture with air. Reacts violently with strong oxidants. Violent reaction with oxygen and strong oxidizers. May accumulate static electrical charges, and may cause ignition of its vapors. The substance may polymerize. Inhibit peroxide formation with tert-butyl catechol. ENB should be stored in a nitrogen atmosphere since it reacts with oxygen

Waste Disposal

Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.