5-Ethylidene- 2-norbornene is a colorless
liquid with a turpentine-like odor. The Odor Threshold
is 0.007 ppm.
clear colorless to yellow liquid
5-Ethylidene-2-norbornene is used as a self healing agent for polymeric composites. It is also used to reinforce multiwalled carbon nanotubes.
As third monomer in EPDM (ethylene-
propylene diene monomer)
Ethylidene norbornene is the third monomer in EPDM
(ethylene–propylene diene monomer) elastomers.
A diene used as the third
monomer in EPDM elastomers.
Colorless liquid with an odor of turpentine. Flash point 101°F. Floats on water.
Flammable. Insoluble in water.
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.
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.
5-ETHYLIDENE-2-NORBORNENE is flammable.
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.
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.
UN1993 Flammable liquids, n.o.s., Hazard Class: 3;
Labels: 3-Flammable liquid, Technical Name Required.
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
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.
