Samarium (II) fluoride

Crystal structure
__ Sm 2+      __ F -
General
Surname	Samarium (II) fluoride
other names	Samarium difluoride
Ratio formula	SmF 2
Brief description	purple to black solid
External identifiers / databases
CAS number 15192-17-3 Wikidata Q15632780
properties
Molar mass	188.35 g mol −1
Physical state	firmly
density	6.16 g cm −3
Melting point	1417 ° C
boiling point	> 2400 ° C
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 .

Samarium (II) fluoride is an inorganic chemical compound of samarium from the group of fluorides .

Extraction and presentation

Samarium (II) fluoride can be obtained by reacting samarium (III) fluoride with samarium or hydrogen .

${\displaystyle \mathrm {2\ SmF_{3}+Sm\longrightarrow 3\ SmF_{2}} }$

${\displaystyle \mathrm {2\ SmF_{3}+H_{2}\longrightarrow 2\ SmF_{2}+2\ HF} }$

properties

Samarium (II) fluoride is a purple to black solid. It has a crystal structure of the cubic calcium fluoride type.

Individual evidence

1. ↑ ^{a b c d} Jean d'Ans, Ellen Lax, Roger Blachnik: Pocket book for chemists and physicists . Springer DE, 1998, ISBN 3-642-58842-5 , pp. 734 ( limited preview in Google Book search).
2. ↑ ^{a b c d e} Georg Brauer (Ed.), With the collaboration of Marianne Baudler u. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 255.
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.