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- Chemical Name: Cyclopentene
- CAS No.: 142-29-0
- Molecular Fomula: ：C5H8
- Molecular weight：68.12
- Appearance:Colorless gas
- Sample：Available
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Description of tech
- Cyclopentene is a chemical compound with the formula C5H8. It is a colorless liquid with a petrol-like odor. It is one of the cycloalkenes.
Cyclopentene is produced industrially in large amounts. It is used as a monomer for synthesis of plastics, and in a number of chemical syntheses.
It can be obtained from vinylcyclopropane in the vinylcyclopropane-cyclopentene rearrangement.
Basic Info of tech
Basic Info
Numbering system
Properties
Safety Info
Basic Info
| Chemical Name | cyclopentene |
| Synonyms | Cyclopcnten;cyclopentenylidene;3-cyclopentene;Cyclopenten;Cyclopentene;Expand |
| CAS No. | 142-29-0 |
| Molecular Formula | C5H8 |
| Molecular Weight | 68.11700 |
| PSA | 0.00000 |
| LogP | 1.72650 |
Numbering system
| EINECS number | 205-532-9 |
| MDL number | MFCD00001394 |
| BRN number | 635707 |
| PubChem number | 24888794 |
| RTECS number | GY5950000 |
Properties
| Appearance & Physical State | colourless liquid with a petrol-like odour |
| Density | 0.774 |
| Boiling Point | 44ºC |
| Melting Point | -135ºC |
| Flash Point | -30ºC |
| Refractive Index | 1.42-1.424 |
| Water Solubility | immiscible |
| Stability | Stable. Highly flammable. Incompatible with strong oxidizing agents. Store cold. |
| Storage Condition | 0-6ºC |
| Vapor Pressure | 20.89 psi ( 55 °C) |
Safety Info
| RTECS | GY5950000 |
| Hazard Class | 3 |
| Safety Statements | S16-S36/37-S61 |
| HS Code | 2902199090 |
| Packing Group | II |
| WGK Germany | 3 |
| RIDADR | UN 2246 |
| Risk Statements | R11; R21/22; R52/53; R65; R67 |
| Hazard Codes | F |
What is Cyclopentene?
- With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Cyclopentene which has developed particularly rapidly in recent years. Do you know about Cyclopentene?
- The official answer：Colorless, irritating gas. Soluble in ethanol, ether, benzene, and petroleum ether, insoluble in water. Colorless liquid. Relative molecular mass 68.13. Relative density 0.7720. melting point 135.08℃. Boiling point 44.24℃. Refractive index 1.4225. flashpoint -50℃. Ignition point 385℃. Viscosity 0.2mPa-s(20℃). Insoluble in water, soluble in organic solvents such as ethanol, ether, benzene, and petroleum ether. Can open ring polymerization, also can be copolymerized with conjugated diolefins. Vapor and air to form an explosive mixture, the explosion limit of 3.4% ~ 8.5% (v/v). Critical temperature 233 ℃.
What’s the application of Cyclopentene?
- Used in the production of polycyclopentene rubber, cyclopentanediol-1,2- and cyclopentene oxide, the drug ketamine, cyclopentylphenol (disinfectant), cyclic aldehyde, cyclopentanediol, etc. Used in the production of bromocyclopentane and other uses for the production of various chemical materials for organic synthesis, as a cross-linking agent for resins; gas chromatography comparison samples. Used as copolymer monomer, also used in organic synthesis
Conclusion
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