Manganese (III) fluoride

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Crystal structure
Structural formula of manganese (III) fluoride
__ Mn 3+      __ F -
General
Surname Manganese (III) fluoride
other names

Manganese trifluoride

Ratio formula MnF 3
Brief description

ruby red solid

External identifiers / databases
CAS number 7783-53-1
EC number 232-006-6
ECHA InfoCard 100.029.096
PubChem 82213
Wikidata Q419682
properties
Molar mass 111.93 g mol −1
Physical state

firmly

density

3.54 g cm −3  (25)

Melting point

600 ° C (decomposition)

solubility

Hydrolysis in water

safety instructions
GHS labeling of hazardous substances
03 - Oxidising 06 - Toxic or very toxic

danger

H and P phrases H: 272-301-312-315-319-332-335
P: 220-261-280-301 + 310-305 + 351 + 338
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

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

Extraction and presentation

Manganese (III) fluoride can be obtained by reacting manganese (II) iodide or manganese (II) fluoride with fluorine .

It can be produced by fluorinating manganese.

properties

Manganese (III) fluoride is a ruby ​​red salt that is hydrolyzed by water. It is thermally resistant up to 600 ° C. It has a monoclinic pseudorhombohedral crystal structure with the space group C 2 / c (space group no. 15) , which is made up of elongated MnF 6 octahedra. The lattice parameters are a = 8.904 ± 0.003  Å ; b = 5.037 ± 0.002 Å; c = 13.448 ± 0.005 Å; β = 92.74 ± 0.04 °. Template: room group / 15

use

Manganese (III) fluoride is used as a fluorinating agent.

Individual evidence

  1. a b c d e data sheet Manganese (III) fluoride, 99.9% trace metals basis from Sigma-Aldrich , accessed on July 10, 2012 ( PDF ).
  2. 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. 268.
  3. webelements: WebElements Periodic Table of the Elements | Manganese | chemical reaction data
  4. Erwin Riedel, Christoph Janiak: Inorganic Chemistry . Walter de Gruyter, 2011, ISBN 3-11-022566-2 , p. 831 ( limited preview in Google Book search).
  5. ^ MA Hepworth, KH Jack, RS Nyholm: Interatomic Bonding in Manganese Trifluoride. In: Nature. 179, 1957, pp. 211-212, doi : 10.1038 / 179211b0 .
  6. ^ MA Hepworth, KH Jack: The crystal structure of manganese trifluoride, MnF3 In: Acta Crystallographica. 10, 1957, pp. 345-351, doi : 10.1107 / S0365110X57001024 .
  7. Investigation of Manganese Trifluoride - Thermal Decomposition by Knudsen Cell Mass Spectrometry (PDF; 6 kB)