Methylfluoroform, 1,1,1-Trifluoroform, R-143a, HFC-143a, UN 2035
3D model (Jmol)
|Molar mass||84.04 g/mol|
|Density||3.7 kg/m3 (gas)|
|Melting point||−111 °C (−168 °F; 162 K)|
|Boiling point||−47.6 °C (−53.7 °F; 225.6 K)|
|Vapor pressure||11 200 hPa (20 °C)|
|Extremely flammable (F+)|
|S-phrases (outdated)||S9, S16, S33|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
1,1,1-Trifluoroethane, or R-143a or simply trifluoroethane, is a hydrofluorocarbon compound that is a clear, colorless gas. It should not be confused with the much more commonly used gas R-134a or the isomeric compound 1,1,2-trifluoroethane.
It has a critical temperature of 73 °C.
It is used as a refrigerant either by itself or more commonly as a component of blended mixtures. Unlike CFCs used as refrigerants, trifluoroethane has no chlorine atoms and is therefore not an ozone-depleting chemical, though its high chemical stability and infra-red absorbency make it a potent greenhouse gas with a global warming potential of 4300, higher than many other commonly used HFC refrigerants.
Trifluoroethane is also used as a propellant in canned air products used to clean electronic equipment.
- "Refrigerants - Environmental Properties". The Engineering ToolBox. Retrieved 2016-09-12.