Manganese (IV) fluoride
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 | |||||||
|
|||||||
properties | |||||||
Molar mass | 130.93 g mol −1 | ||||||
Physical state |
firmly |
||||||
solubility |
reacts violently with water |
||||||
safety instructions | |||||||
|
|||||||
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
- ↑ 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.
- ↑ a b Rudolf Hoppe, Wolfgang Dähne, Wilhelm Klemm: Mangantetrafluorid, MnF 4 . In: The natural sciences. 48, 1961, pp. 429-429, doi : 10.1007 / BF00621676 .
- ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
- ↑ a b Patent: Process for the production of manganese tetrafluoride - Document DE602005006312T2
- ↑ 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).