Product Description
Cyclopentadiene, or cyclopentadiene, is a five-carbon cyclic diene with the formula C5H6. Cyclopentadiene is a colorless liquid at room temperature, has a strong pungent odor, and rapidly polymerizes to form dimeric cyclopentadiene through its own Diels-Alder reaction. Dipolymer cyclopentadiene is decomposed into cyclopentadiene by heating. Insoluble in water, soluble in ether, benzene and other solvents. Cyclopentadiene can be used as a dienophile to undergo diels-Alder reactions with para-benzoquinone and other dienophiles. Proton NMR spectroscopy shows that hydrogen [1,5] migrations occur continuously within the cyclopentadiene molecule, making the five ring carbon atoms identical. It is also for this reason that substituted cyclopentadiene, when DA reactions occur, usually results in a mixture of numerous isomer products. The carbon of cyclopentadienylene (C5H5-) is somewhat acidic, and the resulting anion has six π electrons and is aromatic. Cyclopentadiene and cyclopentadienyl negative ions can be coordinated with metal to form metallocene complexes. A typical example is ferrocene. Cyclopentadienyl (Cp). Cyclopentadiene is generally obtained from crude benzene, a byproduct of coking, or from the low-boiling part of petroleum pyrolysis.
| Name | Cyclopentadiene | EINECS | 208-835-4 |
| CAS No. | 542-92-7 | Density | 0.878 g/cm3 |
| PSA | 0.00000 | LogP | 1.50250 |
| Solubility | 10.3 mM at 25 °C (shake flask-UV spectrophotometry, Streitwieser and Nebenzahl, 1976) | Melting Point | - 97.2 C
|
| Formula | C5H6 | Boiling Point | 41.499 °C at 760 mmHg |
| Molecular Weight | 66.1026 | Flash Point | N/A |
| Transport Information | N/A | Appearance | colourless liquid |
Appearance and properties: colorless liquid
Density: 0.877g/cm3
Boiling point: 41.5ºC at 760mmHg
Melting point: -97.2ºC
Refractive index: 1.503
Stability: Stable at room temperature. Incompatible with oxidizing agents, acids and a wide variety of other compounds. May form peroxides in storage. May undergo spontaneous polymerisation. Decomposes on heating. Highly flammable. Mixtures with air are explosive.
Storage conditions: the warehouse is ventilated and dry at low temperature, stored separately from oxidants and acids, and should not be stored for a long time to prevent polymerization.
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Company Profile
Hebei yanxi chemical co.,Itd is a professional research and development of the production of lead acetate,2-phenylethylamide enterprises.The key members of the company are established by local well-known entrepreneurs and professional engineers under the call and support of the party's"low-carbon environmental protectionsafety and stability"under the innovation in traditional production equipment and technology,the use of"high temperature cooling"and "plastic basin crystallization"technology,on the basis of reducing the cost of products to make the quality of products to the same industryWith the efforts of all the staff of the companywe have established many cooperative companies in Shan Dong,He Nan,Guang Dong and other places in recent decades. Under the close supervision of the quality inspection department of the company,we carry out production and sales in the way of "labeling",providing the most convenient and fastest service for users all over the countryCompanies in the"advance with The Timesand the city every day with the advancement of"under the guidance of the core ideasadhering to the"relying on scientific and technological innovationthe development of circular economy" of the enterprise purpose,established in the marketenhance strength,go the way of science and environmental sustainable developmentrelying on the national technology research and development center, increasing spending on research and development based on the domestic market, expand the international marketmanufacturing high quality productssincere service society,toward a modern, ecology, science and technologychemical enterprises of the world.
China
