Manganese (IV) fluoride

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Crystal structure
Crystal structure
__ Mn 4+      __ F -
General
Surname Manganese (IV) fluoride
other names

Manganese tetrafluoride

Ratio formula MnF 4
Brief description

blue solid

External identifiers / databases
CAS number 15195-58-1
Wikidata Q419573
properties
Molar mass 130.93 g mol −1
Physical state

firmly

solubility

reacts violently with water

safety instructions
GHS hazard labeling
no classification available
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Manganese (IV) fluoride is a chemical compound of manganese from the group of fluorides .

Extraction and presentation

Manganese (IV) fluoride can be obtained by reacting manganese with fluorine .

It can also by fluorination of manganese (II) fluoride by terbium (IV) fluoride are recovered.

properties

Manganese (IV) fluoride is a light blue solid that is very reactive and highly hygroscopic . It reacts with petroleum to form flames and slowly changes to manganese (III) fluoride at 0 ° C. in a high vacuum with elimination of fluorine. It reacts violently with water and on contact with humidity the compound decomposes immediately. Two different modifications of manganese (IV) fluoride are known. The α-form of manganese (IV) fluoride consists of Mn 4 F 20 rings in which manganese octahedra are connected by cis-fluorine bridges.

use

Manganese (IV) fluoride is used in the chemical industry as a powerful oxidizing agent and as a source for the production of pure fluorine.

Individual evidence

  1. a b c d Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 269.
  2. a b Rudolf Hoppe, Wolfgang Dähne, Wilhelm Klemm: Mangantetrafluorid, MnF 4 . In: The natural sciences. 48, 1961, pp. 429-429, doi : 10.1007 / BF00621676 .
  3. This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
  4. a b Patent: Process for the production of manganese tetrafluoride - Document DE602005006312T2
  5. Tsuyoshi Nakajim, Boris Žemva, Alain Tressaud: Advanced Inorganic Fluorides: Synthesis, Characterization, and Applications . Elsevier, 2000, ISBN 0-444-72002-2 , pp. 111 ( limited preview in Google Book search).