5-Ethylidene-2-Norbornene;
ENB, CAS no.16219-75-3;
Colorless to yellow liquid;
Flammable, away from heat and flame;
Monomer for synthetic rubber.

Chemical Identification

Common Name:	5-Ethylidene-2-Norbornene (ENB)
CAS No.:	16219-75-3
EINECS No.:	240-347-7
Appearance:	Clear colorless to yellow liquid
Density:	0.89
Boiling Point:	146 °C
Flash Point:	38 °C
Refractive Index:	1.49
Storage Condition:	Flammables area
Molecular Formula:	C9H12
Molecular Weight:	120.19
Molecular Structure:

OTHER NAMEs:

ENB; (5E)-5-EthylideneBicyclo[2.2.1]Hept-2-Ene; 2-Ethylidenenorbornene; 2-Norbornene, 5-Ethylidene; 5-Ethylene-2-Norborene; 5-Ethylidene Bicyclo[2,2,1]Heptene; 5-Ethylidene Norbornene; 5-Ethylidene-2-Norbornen; 5-Ethylidenenorborn-2-Ene; 5-Ethylidene-Norbornene; Ethylidene Norbornene; Ethylidene-2-Norbornene; Ethylidenenorbornene.

Product Information

SPECIFICATIONs: 

Product name: ENB Manufacturer: Ningbo Titan Unichem Co., Ltd.
TEST ITEMS	SPECIFICATIONS	METHOD
Appearance	Colorless transparent liquid	Visual
Color (Pt-Co)	50 max	ASTM D1209-2005
Purity	98.5% min	GC
Total Lights (including VNB)	1.0% max	GC
Total heavies	1.0% max	GC
Water	50ppm max	ASTM E 1064-12
Inhibiter (BHT)	80-150ppm	GC

PICTUREs:

Loading of 5-Ethylidene-2-Norbornene (ENB) from TITAN UNICHEM. 

Loading of 5-Ethylidene-2-Norbornene (ENB) from TITAN UNICHEM.

PACKAGING:

• ISO Tank, or package as per customer's request.

DELIVERY:

• Prompt shipment.

STORAGE & HANDLING:

• Stored in cool and dry area.

• Keep away from heat and flame.

• Stored in containers filled with nitrogen gas;

• This product must have static grounding device.

• No contact with oxygen.

SAFETY INFORMATION:

Hazard Class:	UN1993/3, UN 2929/6.1
HS Code:	2902199090
Packing Group:	III
Risk Statements:	R10: Flammable. R22: Harmful if swallowed. R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements:	S16: Keep away from sources of ignition - No smoking. S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39: Wear suitable protective clothing, gloves and eye/face protection.
Fire Hazard:	This chemical is flammable.

Application

DESCRIPTIONs:

• ENB is a colorless to yellowish transparent liquid chemical, with a taste of turpentine.

• ENB has a strong distinctive odour with a low olfactory threshold and so any break of containment leading to exposure should be readily detected.

• It's the third monomer for synthesizing EPDM rubber, the most ideal third monomer.

USEs:

• ENB is used as a speciality monomer in the production of synthetic rubbers (EPDM rubber).

• ENB is used only as a chemical intermediate for synthetic rubber production.

• As a third monomer, it can get copolymer of EPDM with ethylene and propylene.

• Obtained vulcanized rubber's speed is faster than any other third monomer, and it can be overcome the shortcoming of EPDM's slow Sulfide.

• Therefore, it can be used as a rubber around engine; waterproof sheet materials such as plastics and the impact resistance of the modified material.