1,1,1,3,3,3-Hexafluoropropane

1,1,1,3,3,3-Hexafluoropropane is an organic chemical, an organofluoride. It is a colorless gas, usually available in the form of a liquid gas.[1] It is used as a fire suppression agent, a foaming agent, a highly effective refrigerant, a heat transfer medium, a dielectric gas, a sterilant carrier, a polymerization medium, a carrier fluid, a displacement drying agent, a thermodynamic power cycle working fluid, etc. It is used as a cold gas rocket propellant by the Mars Cube One spacecraft.[2]

1,1,1,3,3,3-Hexafluoropropane
Names
IUPAC name
1,1,1,3,3,3-hexafluoropropane
Other names
FE-36; FE 36; HFC-236fa; FC-236fa; CCO610;HCFC 236fa; R 236fa; 2,2-dihydroperfluoropropane; bistrifluoromethylmethane
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.130.489
EC Number
  • 425-320-1
  • 614-909-0
RTECS number
  • TZ4043332
Properties
C3H2F6
Molar mass 152.039 g·mol−1
Appearance Colorless gas
Melting point −98.0 to −93.6 °C (−144.4 to −136.5 °F; 175.2 to 179.6 K)
Boiling point −1.4 to −0.7 °C (29.5 to 30.7 °F; 271.8 to 272.4 K)
724 mg/l
Vapor pressure 270 kPa at 25 °C
mol.kg−1.bar−1
Hazards
Main hazards asphyxiant
GHS pictograms
GHS Signal word Warning
H280, H336
P261, P271, P304+340, P312, P403+233, P405, P410+403, P501
Flash point Non-flammable
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references

When used as a fire suppressant, hexafluoropropane carries the DuPont trade name, FE-36.

1,1,1,3,3,3-Hexafluoropropane is a greenhouse gas; its global warming potential is 6300.

It is manufactured by reacting 1,1,1,3,3,3-hexachloropropane with hydrogen fluoride in gas phase at temperature between 250-400 °C, in presence of a catalyst in the form of trivalent chromium (e.g. chromium(III) chloride) supported on carbon with low content of specific impurities.[3]

See also

References

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