Cyclopentane
Cyclopentane (also called C pentane) has a chemical formula C5H10. It is usually formed by cracking cyclohexane in the presence of high temperature and pressure.[4]
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| Names | |||
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| Preferred IUPAC name
Cyclopentane | |||
| Other names
pentamethylene | |||
| Identifiers | |||
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| ECHA InfoCard | 100.005.470 | ||
| EC Number |
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| Properties | |||
| C5H10 | |||
| Molar mass | 70.1 g/mol | ||
| Appearance | clear, colorless liquid | ||
| Odor | mild, sweet | ||
| Density | 0.751 g/cm3 | ||
| Melting point | −93.9 °C (−137.0 °F; 179.2 K) | ||
| Boiling point | 49.2 °C (120.6 °F; 322.3 K) | ||
| 156 mg·l−1 (25 °C)[1] | |||
| Solubility | soluble in ethanol, acetone, ether | ||
| Vapor pressure | 45 kPa (20 °C) [2] | ||
| Acidity (pKa) | ~45 | ||
| -59.18·10−6 cm3/mol | |||
Refractive index (nD) |
1.4065 | ||
| Hazards | |||
| Main hazards | Flammable[3] | ||
| NFPA 704 |
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| Explosive limits | 1.1%-8.7%[3] | ||
| U.S. Permissible exposure limit (PEL) |
none[3] | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |||
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| Infobox references | |||
References
- Record of cyclopentane in the GESTIS Substance Database of the Institute for Occupational Safety and Health, accessed on 28 February 2015.
- "Icsc 0353 - Cyclopentane".
- NIOSH Pocket Guide to Chemical Hazards. "#0171". National Institute for Occupational Safety and Health (NIOSH).
- "What is a Cyclopentane? - Definition from Corrosionpedia".
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