Iodine pentafluoride

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Iodine pentafluoride
Stereo structural formula of iodine pentafluoride Space-filling model of iodine pentafluoride
Identifiers
CAS number 7783-66-6 YesY
PubChem 522683 YesY
ChemSpider 455940 YesY
EC number 232-019-7
Jmol-3D images Image 1
Properties
Molecular formula IF5
Molar mass 221.89 g/mol
Appearance colorless or pale yellow 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)
Solubility in water Reacts[1]
Structure
Crystal structure monoclinic
point group C2/c
Coordination
geometry
square pyramidal
Molecular shape square pyramidal[2]
Hazards
MSDS External MSDS
GHS pictograms The flame-over-circle pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) The corrosion pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) The skull-and-crossbones pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) The environment pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)
GHS signal word Danger
GHS hazard statements H271, H330, H311, H301, H314, H371, H410[3]
GHS precautionary statements P202, P232, P304, P310[3]
Main hazards Toxic, oxidizing, corrosive.
NFPA 704
Flammability code 0: Will not burn. E.g., water Health code 3: Short exposure could cause serious temporary or residual injury. E.g., chlorine gas Reactivity code 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g., phosphorus Special hazard W: Reacts with water in an unusual or dangerous manner. E.g., cesium, sodiumNFPA 704 four-colored diamond
Related compounds
Other anions Iodine pentoxide
Other cations Bromine pentafluoride
Related compounds Iodine monofluoride
Iodine trifluoride
Iodine heptafluoride
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Iodine pentafluoride is an interhalogen compound with chemical formula IF5. It is a fluoride of iodine. It is a colorless or yellow liquid with a density of 3.250 g cm−3. It was first synthesized by Henri Moissan in 1891 by burning solid iodine in fluorine gas.[4] This exothermic reaction is still used to produce iodine pentafluoride, although the reaction conditions have been improved.[5][6]

I2 + 5 F2 → 2 IF5

Chemistry[edit]

Iodine pentafluoride is a strong fluorination agent and is highly oxidative. It reacts vigorously with water forming hydrofluoric acid and with more fluorine forming iodine heptafluoride.

Primary amines react with iodine pentafluoride forming nitriles after hydrolysis with water.[7]

R-CH2-NH2 → R-CN

References[edit]

  1. ^ Patnaik, P. (2002). Handbook of Inorganic Chemicals. McGraw-Hill. ISBN 0-07-049439-8. 
  2. ^ Durbank, R. D.; Jones, G. R. (1974). "Crystal structure of Iodine Pentafluoride at -80° ". Inorganic Chemistry 13 (5): 421–439. doi:10.1021/ic50135a012. 
  3. ^ a b http://www.chemadvisor.com/Matheson/database/msds/mat11440000800003.PDF
  4. ^ Moissan, M. H. (1891). "Nouvelles Recherches sur le Fluor". Annales de Chimie et de Physique 6 (24): 224–282. 
  5. ^ Ruff, O.; Keim, R. (1930). "Das Jod-7-fluorid [The iodine-7-fluoride]". Zeitschrift für Anorganische und Allgemeine Chemie (in German) 193 (1): 176–186. doi:10.1002/zaac.19301930117. 
  6. ^ Ruff O.; Keim R. (1931). "Fluorierung von Verbindungen des Kohlenstoffs (Benzol und Tetrachlormethan mit Jod-5-fluorid, sowie Tetrachlormethan mit Fluor) [Fluoridation of Carbon Compounds (Benzene and Tetrachlormethane with Iodine-5-Fluoride, and Tetrachloromethane with Fluorine)]". Zeitschrift für Anorganische und Allgemeine Chemie (in German) 201 (1): 245–258. doi:10.1002/zaac.19312010122. 
  7. ^ Stevens, T. E. (1966). "Rearrangement of Amides with Iodine Pentafluoride". Journal of Organic Chemistry 31 (6): 2025–2026. doi:10.1021/jo01344a539. 

Further reading[edit]

External links[edit]