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 Y
PubChem	9868
ChemSpider	9484 Y
EC number	206-996-5
Jmol-3D images	Image 1
SMILES FC(F)(F)C
InChI InChI=1S/C2H3F3/c1-2(3,4)5/h1H3 Y Key: UJPMYEOUBPIPHQ-UHFFFAOYSA-N Y InChI=1/C2H3F3/c1-2(3,4)5/h1H3 Key: UJPMYEOUBPIPHQ-UHFFFAOYAD
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
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox 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.

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.

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

References

External links

• MSDS for 1,1,1-trifluoroethane