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1,1,1-Trifluoroethane

1,1,1-Trifluoroethane

IUPAC name	1,1,1-Trifluoroethane
Other names	Methylfluoroform, 1,1,1-Trifluoroform, R-143a, HFC-143a, UN 2035
Identifiers
CAS number	420-46-2
PubChem	9868
EINECS number	206-996-5
SMILES	CC(F)(F)F
InChI	InChI=1/C2H3F3/c1-2(3,4)5/h1H3
Properties
Molecular formula	C₂H₃F₃
Molar mass	84.04 g/mol
Appearance	Colourless gas
Density	3.7 kg/m³ (gas)
Melting point	-111 °C
Boiling point	-47.6 °C
Vapor pressure	11 200 hPa (20 °C)
Hazards
EU classification	Extremely flammable (F+)
R-phrases	R12
S-phrases	S9, S16, S33
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

1,1,1-Trifluoroethane, or R-143a or simply trifluoroethane, is a fluorocarbon compound that is a clear, colorless gas. It should not be confused with the isomeric compound 1,1,2-trifluoroethane.

Additional recommended knowledge

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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 a potent ozone-depleting chemical.

Trifluoroethane is also used as a propellant in canned air products used to clean electronic equipment.