Hexafluoroacetone

Hexafluoroacetone (HFA) is a chemical compound with the formula (CF3)2CO. It is structurally similar to acetone; however, its reactivity is markedly different. It a colourless, hygroscopic, nonflammable, highly reactive gas characterized by a musty odour. The most common form of this substance is hexafluoroacetone sesquihydrate (1.5 H2O), which is a hemihydrate of hexafluoropropane-2,2-diol (F
3C)
2C(OH)
2, a geminal diol.

Hexafluoroacetone
Names
Preferred IUPAC name
1,1,1,3,3,3-Hexafluoropropan-2-one
Other names
perfluoroacetone
acetone hexafluoride
perfluoro-2-propanone
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.010.616
EC Number
  • 211-676-3
RTECS number
  • UC2450000
UNII
UN number 2420
  • InChI=1S/C3F6O/c4-2(5,6)1(10)3(7,8)9 Y
    Key: VBZWSGALLODQNC-UHFFFAOYSA-N Y
  • InChI=1/C3F6O/c4-2(5,6)1(10)3(7,8)9
    Key: VBZWSGALLODQNC-UHFFFAOYAI
  • FC(F)(F)C(=O)C(F)(F)F
Properties
C3F6O
Molar mass 166.02 g/mol
Appearance Colorless gas
Odor musty
Density 1.32 g/ml, liquid
Melting point −129 °C (144 K)
Boiling point −28 °C (245 K)
Reacts with water
Vapor pressure 5.8 atm (20 °C)
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Toxic (T),
Corrosive (C)
GHS labelling:
Danger
H280, H301, H310, H311, H314, H315, H330, H360, H370, H372
P201, P202, P260, P262, P264, P270, P271, P280, P281, P284, P301+P310, P301+P330+P331, P302+P350, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P307+P311, P308+P313, P310, P312, P314, P320, P321, P322, P330, P332+P313, P361, P362, P363, P403+P233, P405, P410+P403, P501
NFPA 704 (fire diamond)
3
0
2
W
Flash point Nonflammable
NIOSH (US health exposure limits):
PEL (Permissible)
 none
REL (Recommended)
 TWA 0.1 ppm (0.7 mg/m3) [skin]
IDLH (Immediate danger)
 N.D.
Related compounds
Related ketones;
organofluorides
 Acetone;
Hexafluoro-2-propanol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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