This article needs to be updated.(October 2023) |
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Names | |||
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Preferred IUPAC name
Trichloro(fluoro)methane | |||
Other names
Trichlorofluoromethane
Fluorotrichloromethane Fluorochloroform Freon 11 CFC 11 R 11 Arcton 9 Freon 11A Freon 11B Freon HE Freon MF | |||
Identifiers | |||
3D model (JSmol)
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ChEBI | |||
ChEMBL | |||
ChemSpider | |||
ECHA InfoCard | 100.000.812 | ||
EC Number |
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PubChem CID
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RTECS number |
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UNII | |||
CompTox Dashboard (EPA)
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Properties | |||
CCl3F | |||
Molar mass | 137.36 g·mol−1 | ||
Appearance | Colorless liquid/gas | ||
Odor | nearly odorless[1] | ||
Density | 1.494 g/cm3 | ||
Melting point | −110.48 °C (−166.86 °F; 162.67 K) | ||
Boiling point | 23.77 °C (74.79 °F; 296.92 K) | ||
1.1 g/L (at 20 °C) | |||
log P | 2.53 | ||
Vapor pressure | 89 kPa at 20 °C 131 kPa at 30 °C | ||
Thermal conductivity | 0.0079 W m−1 K−1 (gas at 300 K, ignoring pressure dependence)[2][verification needed] | ||
Hazards | |||
GHS labelling:[4] | |||
Warning | |||
H420 | |||
P502 | |||
Flash point | Non-flammable | ||
Lethal dose or concentration (LD, LC): | |||
LCLo (lowest published)
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26,200 ppm (rat, 4 hr) 100,000 ppm (rat, 20 min) 100,000 ppm (rat, 2 hr)[3] | ||
NIOSH (US health exposure limits): | |||
PEL (Permissible)
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TWA 1000 ppm (5600 mg/m3)[1] | ||
REL (Recommended)
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C 1000 ppm (5600 mg/m3)[1] | ||
IDLH (Immediate danger)
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2000 ppm[1] | ||
Safety data sheet (SDS) | ICSC 0047 | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Trichlorofluoromethane, also called freon-11, CFC-11, or R-11, is a chlorofluorocarbon (CFC). It is a colorless, faintly ethereal, and sweetish-smelling liquid that boils around room temperature.[5] CFC-11 is a Class 1 ozone-depleting substance which damages Earth's protective stratospheric ozone layer.[6] R-11 is not flammable at ambient temperature and pressure but it can become very combustible if heated and ignited by a strong ignition source.