16219-75-3 Usage
Description
5-Ethylidene-2-norbornene, also known as乙烯-2-降冰片烯, is a colorless liquid with a turpentine-like odor. It is characterized by its clear colorless to yellow appearance and has a flash point of 101°F. 5-ETHYLIDENE-2-NORBORNENE is known to float on water and is used as a third monomer in EPDM elastomers.
Uses
Used in Polymeric Composites:
5-Ethylidene-2-norbornene is used as a self-healing agent for polymeric composites, enhancing their durability and longevity by enabling the repair of micro-cracks and other damage.
Used in Multiwalled Carbon Nanotubes:
It is also utilized to reinforce multiwalled carbon nanotubes, improving their mechanical and electrical properties for various applications.
Used in EPDM (Ethylene-Propylene Diene Monomer) Elastomers:
5-Ethylidene-2-norbornene serves as the third monomer in EPDM elastomers, contributing to the material's overall performance and properties.
Used in Chemical Industry:
In the chemical industry, 5-Ethylidene-2-norbornene is used as a diene monomer, playing a crucial role in the synthesis of various polymers and elastomers.
General Description:
5-Ethylidene-2-norbornene is a colorless liquid with an odor reminiscent of turpentine. It has a flash point of 101°F and is known to float on water. The odor threshold for this compound is 0.007 ppm.
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.
Check Digit Verification of cas no
The CAS Registry Mumber 16219-75-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,2,1 and 9 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 16219-75:
(7*1)+(6*6)+(5*2)+(4*1)+(3*9)+(2*7)+(1*5)=103
103 % 10 = 3
So 16219-75-3 is a valid CAS Registry Number.
InChI:InChI=1/C9H12/c1-2-8-5-7-3-4-9(8)6-7/h2-4,7,9H,5-6H2,1H3/b8-2+
16219-75-3Relevant articles and documents
5-ethylidene-2-norborene ENB method for the production of (by machine translation)
-
Paragraph 0020-0026, (2017/05/26)
The invention relates to a production method for ENB (5-ethylene-2-norbornylene) and mainly aims to solve the problems in the prior art that the purity of a product is low and the energy consumption is high. The adopted production method for the ENB comprises the following steps: (1) raw materials and a solvent are sent to a first reaction vessel through a static mixer; (2) the reaction product in the first reaction vessel enters into a light component removing tower, tower top light components return to the first reaction vessel and tower kettle heavy components enter into a heavy component removing tower; (3) the kettle components of the heavy component removing tower enter into a DCPD tower, and tower top distilled liquid is purified to obtain a DCPD product; (4) the heavy component removing tower kettle components enter into a VCH tower, the VCH is obtained at the tower top; tower kettle components enter into a VNB tower, THI is obtained in a VNB tower kettle and the VNB is obtained at the tower top; (5) VNB enters into an isomerization reaction vessel to obtain ENB. The problems are better solved by the technical scheme and the production method can be applied in the ENB production.