Norbornene
Synonym(s):2-Norbornene;Norbornylene
- CAS NO.:498-66-8
- Empirical Formula: C7H10
- Molecular Weight: 94.15
- MDL number: MFCD00082304
- EINECS: 207-866-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-10-31 13:32:20
What is Norbornene?
Chemical properties
white crystalline mass
The Uses of Norbornene
Norbornene is used as a monomer and as an intermediate in organic synthesis. It is also used to prepare pharmaceutical intermediates and specialty fragrances. It reacts with ethylene to get cyclic olefin copolymer. Further, it is used in transition metal catalysis to affect migration of electrophilic transition metals. It acts as a monomer in ring-opening metathesis polymerizations with the Grubbs' catalyst. Its polymer, polynorbornene is used in the rubber industry for anti-vibration, anti-impact in personal protective equipment and grip improvement in toy tires, racing tires and transmission system.
Definition
ChEBI: Norbornene is a bridged compound that is cyclohexane with a methylene bridge between carbons 1 and 4 and a double bond at position 2. It is a bridged compound, a carbobicyclic compound and a cyclic olefin.
General Description
The vinylic polymerization of bicyclo[2.2.1]hept-2-ene (norbornene) with Co(II) compounds and the metallocene [η5-(C5Me5)Co-η2-Cl]2, in chlorobenzene activated with methylaluminoxane (MAO) has been reported. Co(II) catalyzed polymerization of bicyclo[2.2.1]hept-2-ene in the presence of ethene has been reported.
Flammability and Explosibility
Non flammable
Purification Methods
Reflux it over Na, and distil it [Gilliom & Grubbs J Am Chem Soc 108 733 1986]. It has also been purified by sublimation in vacuo onto an ice-cold finger. [Woon et al. J Am Chem Soc 108 7990 1986, Beilstein 5 IV 394.]
Properties of Norbornene
Melting point: | 44-46 °C (lit.) |
Boiling point: | 96 °C (lit.) |
Density | 0.955 |
vapor pressure | 30.06kPa at 59℃ |
refractive index | 1.4770 (estimate) |
Flash point: | 5 °F |
storage temp. | Sealed in dry,Room Temperature |
solubility | Chloroform (Soluble), Ethyl Acetate (Slightly), Methanol (Slightly) |
form | Crystalline Mass |
color | White |
Specific Gravity | 0.85 |
Water Solubility | Soluble in ethanol, ether and most organic solvents. Insoluble in water. |
Hydrolytic Sensitivity | 4: no reaction with water under neutral conditions |
BRN | 1098544 |
Exposure limits | ACGIH: TWA 20 ppm OSHA: Ceiling 300 ppm; TWA 200 ppm NIOSH: IDLH 500 ppm; TWA 100 ppm(375 mg/m3); STEL 150 ppm(560 mg/m3) |
CAS DataBase Reference | 498-66-8(CAS DataBase Reference) |
EPA Substance Registry System | Bicyclo[2.2.1]hept-2-ene (498-66-8) |
Safety information for Norbornene
Signal word | Danger |
Pictogram(s) |
Flame Flammables GHS02 Exclamation Mark Irritant GHS07 Health Hazard GHS08 Environment GHS09 |
GHS Hazard Statements |
H228:Flammable solids H319:Serious eye damage/eye irritation H361:Reproductive toxicity H411:Hazardous to the aquatic environment, long-term hazard |
Precautionary Statement Codes |
P202:Do not handle until all safety precautions have been read and understood. P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P240:Ground/bond container and receiving equipment. P273:Avoid release to the environment. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P308+P313:IF exposed or concerned: Get medical advice/attention. |
Computed Descriptors for Norbornene
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