Terbium (IV) fluoride

Structural formula
__  Tb 4+      __  F -
Crystal system	monoclinic
Space group	C 2 / c (No. 15)
General
Surname	Terbium (IV) fluoride
other names	Terbium tetrafluoride
Molecular formula	TbF 4
Brief description	white solid
External identifiers / databases
CAS number 36781-15-4 Wikidata Q19309890
properties
Molar mass	234.92 g mol −1
Physical state	firmly
Melting point	160 ° C (decomposition)
solubility	almost insoluble in 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 .

Terbium (IV) fluoride is an inorganic chemical compound of terbium from the group of fluorides .

Extraction and presentation

Terbium (IV) fluoride can be obtained by reacting terbium (III) chloride or terbium (III) fluoride with fluorine at 320 ° C.

${\displaystyle \mathrm {2\ TbF_{3}+F_{2}\longrightarrow 2\ TbF_{4}} }$

Also possible is the synthesis of terbium (III) fluoride with xenon fluorides XeF _x (x = 2,4 or 6) or krypton difluoride .

properties

Terbium (IV) fluoride is a white solid that is insoluble in water. It has a monoclinic crystal structure isotype to that of uranium (IV) fluoride .

Individual evidence

1. ↑ ^{a b c d} William M. Haynes: CRC Handbook of Chemistry and Physics, 95th Edition . CRC Press, 2014, ISBN 978-1-4822-0867-2 , pp. 94 ( limited preview in Google Book search).
2. ↑ Boris Petrovich Sobolev: The Rare Earth Trifluorides: The high temperature chemistry of the rare ... Institut d'Estudis Catalans, 2000, ISBN 978-84-7283-518-4 , pp. 75 ( limited preview in Google Book search).
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} G. Meyer, Lester R. Morss: Synthesis of Lanthanide and Actinide Compounds . Springer Science & Business Media, 1991, ISBN 978-0-7923-1018-1 , pp. 60 ( limited preview in Google Book search).
5. ↑ Erwin Riedel, Christoph Janiak: Inorganic Chemistry . Walter de Gruyter, 2011, ISBN 978-3-11-022566-2 , p. 782 ( limited preview in Google Book search).