Terbium (III) fluoride

Crystal structure
__ Tb 3+      __ F -
Crystal system	orthorhombic
Space group	Pnma (No. 62)
General
Surname	Terbium (III) fluoride
other names	Terbium trifluoride Terbium fluoride
Ratio formula	TbF 3
Brief description	white odorless hygroscopic solid
External identifiers / databases
CAS number 13708-63-9 EC number 237-247-0 ECHA InfoCard 100,033,846 PubChem 83673 Wikidata Q15632781
properties
Molar mass	215.92 g mol −1
Physical state	firmly
density	7.2 g cm −3
Melting point	1172 ° C
boiling point	2280 ° C at 1,013 hPa
solubility	almost insoluble in water
safety instructions
GHS labeling of hazardous substances Caution H and P phrases H: 302-312-332-315-319-335 P: 261-305 + 351 + 338-302 + 352-321-405-501
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Terbium (III) fluoride is an inorganic chemical compound , more precisely a salt , of the rare earth metal terbium from the group of fluorides .

Extraction and presentation

Terbium (III) fluoride can be obtained by reacting terbium (III) oxide with hydrogen fluoride .

${\displaystyle \mathrm {Tb_{2}O_{3}+6\ HF\longrightarrow 2\ TbF_{3}+3\ H_{2}O} }$

properties

Terbium (III) fluoride is a white, odorless, hygroscopic solid that is insoluble in water.

use

Terbium (III) fluoride is used for the production of fluoride glasses and electroluminescent thin films and luminescent zinc sulfide .

Individual evidence

1. ↑ Roger Blachnik (Ed.): Paperback for chemists and physicists . Volume III: Elements, Inorganic Compounds and Materials, Minerals . founded by Jean d'Ans, Ellen Lax. 4th, revised and revised edition. Springer, Berlin 1998, ISBN 3-540-60035-3 , pp. 756 ( limited preview in Google Book search).
2. ↑ ^{a b c d e f g} data sheet Terbium (III) fluoride, anhydrous, REacton®, 99.99% (REO) from AlfaAesar, accessed on September 29, 2013 ( PDF )(JavaScript required) .
3. ↑ ^{a b c} data sheet Terbium (III) fluoride, anhydrous, powder, 99.99% trace metals basis from Sigma-Aldrich , accessed on September 29, 2013 ( PDF ).
4. ↑ 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. 254.