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
Preferred IUPAC name
1,1,1,3,3,3-Hexafluoropropane
Other names
HFC-236fa; FC-236fa; HCFC 236fa; MH36; FE-36; FE 36; 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
UNII
  • InChI=1S/C3H2F6/c4-2(5,6)1-3(7,8)9/h1H2 checkY
    Key: NSGXIBWMJZWTPY-UHFFFAOYSA-N checkY
  • InChI=1/C3H2F6/c4-2(5,6)1-3(7,8)9/h1H2
    Key: NSGXIBWMJZWTPY-UHFFFAOYAC
  • FC(F)(F)CC(F)(F)F
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
Occupational safety and health (OHS/OSH):
Main hazards
 asphyxiant
GHS labelling:
GHS04: Compressed GasGHS07: Exclamation mark
Warning
H280, H336
P261, P271, P304+P340, P312, P403+P233, P405, P410+P403, 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 checkY☒N ?)
Infobox references

When used as a fire suppressant, hexafluoropropane carries the Waysmos Fine Chemical trade name, MH36 or the Chemours trade name, FE-36. Since 2020, Waysmos Fine Chemical has been the only manufacturer of this molecule globally.

1,1,1,3,3,3-Hexafluoropropane is a greenhouse gas; its global warming potential is 9810.[3][4][5]

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.[6]

See also

References
  1. "1,1,1,3,3,3-Hexafluoropropane | CAS:690-39-1 | Huateng Pharma". en.huatengsci.com. Retrieved 2020-07-29.
  2. "InSight Landing Press Kit - Mars Cube One". www.jpl.nasa.gov.
  3. "IPCC AR4 Climate Change 2007, Chapter 2 Changes in Atmospheric Constituents and in Radiative Forcing, Table 2.14". www.ipcc.ch (PDF)
  4. "Fluorinated gases (F gases)". GOV.UK. 11 February 2019. Retrieved 2021-04-14.
  5. "How to calculate the carbon dioxide equivalent for your HFC shipment | EPA". www.epa.govt.nz. Retrieved 2021-04-14.
  6. "Process For The Manufacture Of 1,1,1,3,3,3-Hexafluoropropane - Du Pont De Nemours And Company". www.sumobrain.com.
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