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| Fluoromethane | |
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| IUPAC name | Fluoromethane |
| Other names | Monofluoromethane, Methyl fluoride, Fluoromethylidyne, Freon 41, Halocarbon 41, R41, UN 2454 |
| Identifiers | |
| CAS number | [593-53-3] |
| PubChem | |
| EINECS number | |
| KEGG | |
| ChEBI | |
| SMILES |
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| InChI |
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| Properties | |
| Molecular formula | CH3F |
| Molar mass | 34.03 g/mol |
| Appearance | Colorless, odorless gas |
| Density | 0.5786 kg/m3 at 20 °C 0.557 g/cm3 (liquid) at saturation pressure at 25 °C |
| Melting point |
131.4 K (-141.8 °C) |
| Boiling point |
195.0 K (-78.2 °C) |
| Solubility in water | 1.66 l/kg (2.295 g/l) |
| Vapor pressure | 3.3 MPa |
| Hazards | |
| EU classification | Very flammable (F+) |
| NFPA 704 |
 4
1
0
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| R-phrases | R12 |
| S-phrases | S9, S16, S23, S24/25, S26, S28, S33, S36/37/39, S60 |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references |
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Fluoromethane, also known as methyl fluoride, Freon 41, Halocarbon-41 and HFC-41, is a non-toxic, liquefiable, and flammable gas at standard temperature and pressure. It is used in the manufacture of semiconductor and electronic products. In the presence of an RF field fluoromethane will dissociate into fluoride ions that selectively etch silicon compound films.
Bond energy of C-F is 552 kJ/mol and its length is 0.139 nm (typically 0.14 nm).
Its specific heat capacity is Cp = 38.171 J.mol-1.K-1 at 25 °C. Critical point of fluoromethane is at 44.9 °C (318.1 K) and 6.280 MPa. Its global warming potential is GWP = 150.
See also
- Haloalkane
- Halomethane
- Chloromethane
- Bromomethane
- Iodomethane
- Difluoromethane
- Fluoroform (Trifluoromethane)
- Tetrafluoromethane
External links
- National Pollutant Inventory - Flouride and compounds fact sheet
- MSDS at Oxford University
- Data at Airliquide Encyclopedia
- Termochemical data at chemnet.ru
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- This page was last modified on 26 July 2008, at 16:54.
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