Chemistry:Perfluorooctane
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| Names | |
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| Preferred IUPAC name
Octadecafluorooctane | |
| Other names
PF5080
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| Identifiers | |
3D model (JSmol)
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| Properties | |
| C8F18 | |
| Molar mass | 438.06 g/mol |
| Appearance | Clear, colorless liquid |
| Density | 1.766 g/mL |
| Melting point | −25 °C (−13 °F; 248 K) |
| Boiling point | 103 to 104 °C (217 to 219 °F; 376 to 377 K) |
| 10 ppm | |
| Hazards | |
| Main hazards | None |
| Flash point | None |
| None | |
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 | |
Perfluorooctane, also known as octadecafluorooctane, is a fluorocarbon liquid—a perfluorinated derivative of the hydrocarbon octane. It can be a good substitute for insulating oil in high voltage electronics. In addition to heat transfer applications, it has also been used as a breathable fluid in partial liquid ventilation.[2]
Manufacture
Perfluorooctane can be manufactured by the Fowler process or by electrochemical fluorination.
Fowler Process
The Fowler process involves moderating the action of elemental fluorine with cobalt fluoride in the gas phase from octane.
Electrochemical fluorination
Electrolysis in hydrogen fluoride of nonanoic acid will produce both perfluorononanoic acid and perfluorooctane. Perfluorooctane manufactured this way is marketed under the name PF5080 (or FC77) by 3M as part of their Fluorinert range of heat transfer fluids.[3]
Applications
Perfluorooctane is chemically inert, but has useful physical properties, leading to its employment in diverse areas:
References
- ↑ Perfluorooctane at Sigma-Aldrich
- ↑ H. Proquitté; M. Rüdiger; R. R. Wauer; G. Schmalisch (2003). "Breathing gas perfluorocarbon measurements using an absorber filled with zeolites". British Journal of Anaesthesia 91 (5): 736–8. doi:10.1093/bja/aeg247. PMID 14570799.
- ↑ "3M Performance Fluid PF-5080". 3M. http://solutions.3m.com/wps/portal/3M/en_WW/electronics/home/productsandservices/products/ProductNavigator/Chemicals/?PC_7_RJH9U5230GE3E02LECIE20KAJ2_nid=7DPXKMZHBZbe68CXDBXGWDgl.
- ↑ "Tradeline Medical - Buy Medical Grade Perfluorooctane". http://tradelinemedical.net/perfluorooctane.htm.
- ↑ "Retinal detachment surgery following implantation of a keratoprosthesis. A case report.". Bulletin de la Société Belge d'Ophtalmologie 243: 167–169. 1992. PMID 1302147.
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