Manganese tetrafluoride

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Manganese tetrafluoride
IUPAC name manganese tetrafluoride
Other names manganese(IV) fluoride
Identifiers
InChI InChI=1/4FH.Mn/h4*1H;/q;;;;+4/p-4
Standard InChI InChI=1S/4FH.Mn/h4*1H;/q;;;;+4/p-4
Standard InChIKey KWKYNMDHPVYLQQ-UHFFFAOYSA-J
CAS number [15195-58-1]
Properties
Chemical formula MnF4
Molar mass 130.93 g mol−1
Appearance blue solid
Melting point

70 °C decomp.

Solubility in water reacts violently
Related compounds
Other cations Manganese(II) fluoride
Manganese(III) fluoride
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Manganese tetrafluoride, MnF4, is the highest fluoride of manganese. It is used as a powerful oxidizing agent and as a means of purifying elemental fluorine.[1][2]

Preparation

Manganese tetrafluoride was first unequivocally prepared[Note 1] in 1961 by the reaction of manganese(II) fluoride (or other MnII compounds) with a stream of fluorine gas at 550 °C: the MnF4 sublimes into the gas stream and condenses onto a cold finger.[5]

Notes and references

Notes

  1. Reports of the preparation of MnF4 date back to the nineteenth century,[3] but are inconsistent with the now-known chemistry of the genuine compound. However, the more stable hexafluoromanganate(IV) compounds were prepared as early as 1899.[4]

References

  1. Torisu, Junichi; Oka, Masakazu; Kuznetsov, Andrey Sergeyevich, et al. (Astor Electronics/Showa Denko) Method of manufacturing manganese tetrafluoride. WO PCT Appl. 2006033480, published 30 March 2006.
  2. Seseke-Koyro, Ulrich; Garcia-Juan, Placido; Palsherm, Stefan, et al. (Solvay Fluor) Process for the purification of elemental fluorine. WO PCT Appl. 2009074562, published 18 June 2009.
  3. Melville, W. H. Contribution towards the History of the Fluorides of Manganese. Proc. Am. Acad. Arts Sci. 1876, 12, 228–34, <http://www.jstor.org/stable/25138452>.
  4. Weinland, R. F.; Lauenstein, O. Z. Anorg. Allg. Chem. 1899, 20, 40.
  5. Hoppe, Rudolf; Dähne, Wolfgang; Klemm, Wilhelm Mangantetrafluorid, MnF4. Naturwissenschaften 1961, 48 (11), 429. DOI: 10.1007/BF00621676.

Further reading

External links

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