Iodine pentafluoride

Iodine pentafluoride is an interhalogen compound with chemical formula IF5. It is one of the fluorides of iodine. It is a colorless liquid, although impure samples appear yellow. It is used as a fluorination reagent and even a solvent in specialized syntheses.

This article is about an interhalogen compound. For the IF5 tornado rating, see International Fujita scale.
Iodine pentafluoride
Names
Preferred IUPAC name
Iodine(V) fluoride
Systematic IUPAC name
Pentafluoro-λ5-iodane
Other names
Iodic fluoride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.029.108
EC Number
  • 232-019-7
PubChem CID
UNII
  • InChI=1S/F5I/c1-6(2,3,4)5 Y
    Key: PJIYEPACCBMRLZ-UHFFFAOYSA-N Y
  • InChI=1S/F5I/c1-6(2,3,4)5
    Key: PJIYEPACCBMRLZ-UHFFFAOYSA-N
  • InChI=1/F5I/c1-6(2,3,4)5
    Key: PJIYEPACCBMRLZ-UHFFFAOYAU
SMILES
  • FI(F)(F)(F)F
Properties
IF5
Molar mass 221.89 g/mol
Appearance colorless liquid
Density 3.250 g/cm3
Melting point 9.43 °C (48.97 °F; 282.58 K)
Boiling point 97.85 °C (208.13 °F; 371.00 K)
Reacts
Magnetic susceptibility (χ)
 −58.1·10−6 cm3/mol
Viscosity 2.111 mPa·s
Structure
Monoclinic
point group C2/c
Square pyramidal
Molecular shape
 square pyramidal
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Toxic, oxidiser, corrosive, reacts with water to release HF
GHS labelling:
Danger
H271, H301+H311+H331, H314, H371, H410
P202, P232, P304, P310
NFPA 704 (fire diamond)
3
0
2
W
OX
Safety data sheet (SDS) External MSDS
Related compounds
Other anions
 Iodine pentoxide
Other cations
 Bromine pentafluoride
Related compounds
 Iodine monofluoride
Iodine trifluoride
Iodine heptafluoride
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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